Jeongseong

Korean: 정성 (Jeongseong)
Hanja: 精誠 — refined essence / wholehearted sincerity
a Also known as: Sincere Devotion; Whole-hearted Dedication; The Condition of the Heart

What is Jeongseong?

Jeongseong (Korean: 정성, 精誠) is one of the most foundational concepts in Unification theology and daily practice — the offering of one's whole heart, life-force, and sincere dedication toward God and the providence. It is not simply “effort” in the secular sense, nor is it a religious duty performed out of obligation. Jeongseong is the quality of heart that moves Heaven: a total investment of one's inner self, sustained without interruption, offered with the same intensity whether witnessed or unseen.

The Hanja 精誠 is formed from two characters: 精 (jeong, refined essence, the purest part of a thing) and 誠 (seong, sincerity, the unity of word and reality). Together they form a compound that literally means “the refined sincerity” — the best of what one has, offered without reservation. The character 誠 itself contains 言 (eon, word/speech) and 成 (seong, to accomplish, to become). A person of true jeongseong is one whose word and being are the same — who is what they say, who does what they pledge.

In practical terms, jeongseong encompasses prayer, fasting, early morning devotion (saebyek gido), tears before God, and the sustained attitude of living as if in the direct presence of the Father at every moment. Rev. Moon described jeongseong as the determining condition for whether Heaven can respond:

What does it mean for you to serve with all your heart, with your entire mind, and with all your devotion? It means to offer your life. Is there anything greater than that? To devote yourself with all your heart means giving up your life. Sincerity moves heaven. There is no other way.

— Sun Myung Moon (38-242, 01/08/1971) Cheon Seong Gyeong, Book 7

Jeongseong is thus both a theological category and an orientation of daily life — the inner engine of the entire Unification practice of attendance and restoration.

Section I — Etymology and Theological Roots

The compound 精誠 has deep roots in the Confucian and Taoist traditions of East Asia, where seong (誠) was one of the highest moral virtues — the inner alignment of thought, word, and deed. In the Doctrine of the Mean (Zhongyong), a classic Confucian text, sincerity (seong/cheng) is identified as the way of Heaven itself, and “attaining sincerity” is the way of human beings. For Confucius, to be truly sincere was to be in harmony with the order of the cosmos.

Unification theology preserves this classical meaning and radically deepens it. Where Confucianism treated sincerity as primarily a social and ethical virtue — a matter of trustworthiness between human beings — Rev. Moon relocated its center in the parent-child relationship between God and the individual. Jeongseong is not first and foremost an ethical concept but a relational and providential one: it is the quality that enables the channel between God's heart (shimjeong) and the human heart to remain open.

The character 精 is particularly significant. In traditional Korean medicine and cosmological thought, jeong refers to the life-essence concentrated at the core of a being — the vitality that sustains existence. To offer one's 精誠 is therefore not merely to “try hard” but to bring one's essential life-force into play. Rev. Moon frequently compared jeongseong to the condition that precedes the release of heavenly power — just as water must reach a full boil before steam can be produced, the sincere devotion of a person must reach a threshold before Heaven can respond.

Section II — Jeongseong in the Exposition of the Divine Principle

The Exposition of the Divine Principleand does not treat jeongseong as a separate doctrinal concept but presupposes it as the underlying attitude required for the fulfillment of every providential condition. All indemnity conditions — from the forty-day fasts of the biblical patriarchs to the conditions set by providential figures throughout history — are essentially conditions of jeongseong: the concentrated, sustained sincerity of the human being seeking restoration.

In the section on the Providence of Restoration, the Divine Principle explains that God cannot intervene arbitrarily in human affairs because of the human Portion of Responsibility. What God can respond to is the genuine offering of the human heart — the free, sustained, and total gift of jeongseong. This is why the patriarchs offered sacrifices at dawn and maintained conditions of prayer and separation from worldly concerns: not to manipulate God, but to create the internal condition within themselves through which God's love and guidance could flow.

Within the three-stage providential framework — Formation, Growth, and Completion — jeongseong operates at every level. In the Old Testament Age, jeongseong was expressed through offering things of creation: sacrificial animals, tithes, and firstfruits. In the New Testament Age, it was expressed through the offering of one's children — missionaries, disciples, one's own sons and daughters — to God's work. In the Completed Testament Age, jeongseong takes its fullest form: the offering of oneself completely, in direct attendance to God as the Parent, without any intermediary.

Section III — Jeongseong, Prayer, and Attendance

The most direct expression of jeongseong in the life of a Unification member is early morning prayer (saebyek gido). Rev. Moon consistently modeled this practice himself, rising before dawn for prayer throughout his entire life and teaching that this hour — before the world awakens, before the mind becomes occupied with daily concerns — is the time when the connection to God is clearest and the conditions of jeongseong most powerful.

Offer your first words to Heaven after rising from your bed in the morning. When you step outside your home, you should step with your right foot first, dedicating your first step to Heaven. If you develop such habits, your life will become a life of attendance.

— Sun Myung Moon (17-296, 02/15/1967) Cheon Seong Gyeong, Book 7

This teaching establishes a principle that is central to Unification practice: jeongseong is not an occasional extraordinary act but a continuous orientation of every moment.

The moment one wakes, the moment one steps through a door, the moment one begins eating — each is an opportunity to direct one's heart toward Heaven or to let it drift toward the self. Jeongseong is the discipline of the constant re-orientation toward God.

Rev. Moon described this vividly through his own experience of prayer. He frequently told of praying so intensely that his clothing was soaked through with tears, of kneeling until calluses formed on his knees, of making pledges before God as if with a knife in hand:

When I would pray kneeling on the floor, my tears never dried. I even had calluses on my knees. In Korea there is a saying, "A tower that is made with lots of care will never collapse." We have to be devoted to God. We have to enter into the state of mind where we feel pain in our heart to such an extent that we crazily love and long for God.

— Sun Myung Moon (60-212, 08/17/1972) Cheon Seong Gyeong, Book 7

These descriptions are not merely biographical details. They set the standard — the jeongseong standard — by which the effectiveness of one's prayer and attendance can be measured. The question is not whether one has gone through the external motions of prayer but whether one's heart has been fully invested.

Section IV — Jeongseong and the Providential Heart of God

The concept of jeongseong cannot be separated from an understanding of God's own heart. In Unification theology, God is not a distant lawgiver who demands performance but a Father who has been grieving for thousands of years over the loss of His children. The one who genuinely practices jeongseong is the one who comes to feel this grief — who cries not for their own suffering but for God's:

You should know that God exists near you and is concerned about each of you more than anyone else. You should know that God's love is greater and deeper than that love; it is deeper and greater than any human love in this world. You should be embraced in God's love and be able to call Him, "Father." You should become such true sons and daughters who deeply experience God's internal heart.

— Sun Myung Moon (2-234, 06/02/1957) Cheon Seong Gyeong, Book 7

This is why jeongseong, at its highest expression, always becomes grief on God's behalf. The person who has truly penetrated the meaning of the human situation — who understands the Human Fall, the six-thousand-year history of suffering, the longing of God for restored sons and daughters — cannot help but respond with a devotion that goes beyond duty. Their jeongseong becomes an act of love in return for love.

Rev. Moon's teaching on the shimjeong (heart) of God and his own model of jeongseong are therefore inseparable. God's Heart is the source; jeongseong is the human response that creates the conditions for the channel of that heart to open.

Section V — Jeongseong in the Life of a Blessed Family

For members who have received the Blessing Ceremony, jeongseong takes on a family dimension. It is not enough for one spouse to maintain jeongseong while the other does not; the spiritual power of a Blessed couple flows from their shared dedication. Rev. Moon taught that Hoon Dok Hae — the daily reading of True Parents' words — is the primary vehicle of family jeongseong in the Completed Testament Age. When a family gathers before dawn to read, pray, and discuss the teachings together, they create a channel through which the lineage of Heaven is continuously renewed in that household.

The practical forms of jeongseong for a Blessed Family include:

Dawn prayer and Hoon Dok Hae — Waking early, offering the first fruits of consciousness to God before the day's concerns take hold.

Conditional fasting — Periodic fasting as a form of concentrated jeongseong, setting aside physical needs to focus the body-mind entirely on Heaven's will. Fasting without inner motivation, Rev. Moon taught, is merely starvation; fasting with true jeongseong is a powerful indemnity condition.

Prayer vigils and special conditions — During periods of providence — national campaigns, family crises, the approach of holy days — members traditionally intensify their jeongseong through extended periods of prayer, sometimes through the night.

Living for others — The outward expression of jeongseong in daily life is the practice of living for the sake of others (nam-eul wihae salda). True jeongseong is not a private interior state but a force that radiates outward into service and sacrifice:

How can the path of true love be paved? It can be paved through dedication, service, and sacrifice. This means it is the course of re-creation. You must make sacrifices on this course of re-creation. Such a path of indemnity becomes the path of service.

— Sun Myung Moon (146-294, 07/20/1986) Cheon Seong Gyeong, Book 7

The Tribal Messiah mission — the call for every Blessed Family to restore their 160 families — cannot be accomplished without sustained jeongseong. Rev. Moon taught that the spiritual results of witnessing and outreach are determined not primarily by external skill or strategy but by the depth of the heart behind them. A person of deep jeongseong moves others without knowing how; their sincere dedication creates invisible conditions that Heaven can use.

Section VI — Comparative Perspectives

Confucian tradition: As noted above, the concept of seong (誠) in classical Confucianism is the closest parallel — the moral sincerity that aligns a person with Heaven's way.

However, Confucian seong is primarily relational among humans (ruler/subject, parent/child, husband/wife), whereas Unification jeongseong is primarily relational between the individual and God. Confucianism provides the cultural vocabulary; Unification theology fills it with new providential content.

Christian tradition: The closest Christian parallel to jeongseong is the practice of lectio divina and the contemplative tradition's emphasis on “purity of heart” (puritas cordis) as described by the Desert Fathers — particularly John Cassian's teaching that purity of heart is the proximate goal of the spiritual life, with the Kingdom of Heaven as its ultimate end.

The Unification emphasis on early morning prayer also echoes the monastic tradition of vigils (the night office) as the most powerful time for drawing close to God. However, in Christian mysticism, this purification of heart is pursued in the context of individual salvation, whereas in Unification theology, jeongseong is understood providentially — it is the fuel of the restoration of the world.

Buddhist tradition: The Zen/Chan concept of wholehearted practice (ichigyo zanmai in Japanese, 一行三昧) — total absorption in the present action as a form of offering — shares the Unification understanding that sincerity is not an occasional state but a quality that must pervade every moment of life. The Theravada practice of sati (mindfulness) as continuous present-moment awareness also resonates, though its goal is liberation from attachment rather than union with a personal God.

Islamic tradition: The Arabic concept of ikhlas (إخلاص) — sincere, undivided devotion to God, the purification of intention (niyyah) — is perhaps the closest Islamic parallel. In the Sufi tradition, ikhlas is one of the highest stations of the spiritual path: the complete emptying of the self so that the act is done for God alone, not for reward or recognition. Rev. Moon's emphasis on offering jeongseong whether or not anyone is watching resonates directly with this understanding.

Section VII — Jeongseong in New Religious Movement Scholarship

Scholars who have studied the Unification Movement have consistently noted the central role of devotional practice, early morning prayer, and what members describe as the discipline of “keeping jeongseong” as defining features of membership identity and community cohesion.

Eileen Barker's sociological study The Making of a Moonie (1984) observed that the intensity of devotional practice — including prayer vigils, fasting conditions, and the expectation of sacrificial dedication — was one of the features most distinctive to the Unification community in its early period in the West. While Barker's framing was primarily sociological (examining recruitment and commitment), her description of the devotional culture she observed maps closely onto what the theology names jeongseong.

Later ethnographic work, particularly scholars writing in Nova Religio and other NRM journals in the 2000s and 2010s, examined how Blessed Family life restructured the practice of jeongseong: from the individual disciplines of a young missionary in the field (extended fasting, night prayer, financial sacrifice) toward a family-centered devotional culture organized around Hoon Dok Hae, holy day observance, and the Seunghwa Ceremony tradition.

Academic treatment of jeongseong as a theological concept specifically is relatively limited in English-language NRM scholarship, with most analysis focusing on observable behaviors rather than the Korean conceptual vocabulary that underlies them. This represents a gap in the secondary literature that future researchers working from primary Korean sources — particularly the Cheon Seong Gyeong and Cham Bumo Gyeong — are well positioned to address.

Key Texts on tplegacy.net

Cheon Seong Gyeong — Books 7 (Etiquette and Ceremonies), primary source for teachings on attendance and jeongseong

Hoon Dok Hae — The daily practice that embodies family jeongseong in the Completed Testament Age

The Blessing Ceremony — The context within which the Blessed Family jeongseong takes its fullest form

Sermons of Rev. Moon — Primary source collection