Caodaism presents itself as a universal, syncretic religion centered on a single Supreme Being, Cao Đài, literally “High Tower,” understood as the source of all creation and the ultimate reality behind the diverse names of God in other traditions. This God is regarded as both transcendent and immanent, manifesting through various religious revelations across history. All major religions are seen as partial yet authentic expressions of one divine truth, adapted to different cultures and eras. From this perspective, Caodaism seeks to gather these scattered rays of truth into a more unified spiritual vision, without denying the value of earlier paths.

A key teaching is the doctrine of successive divine revelations, culminating in what is called the Third Amnesty or Third Era of universal revelation. Earlier revelations associated with figures such as Buddha, Laozi, Jesus, Muhammad, and Confucius are honored as genuine but incomplete stages in humanity’s spiritual education. The present era is understood as a renewed outpouring of divine guidance, in which God communicates through spirit mediums to clarify and harmonize previous teachings. This emphasis on ongoing revelation undergirds Caodaism’s strong interest in spirit communication and séances, through which guidance from God and elevated spirits is believed to be received.

The tradition consciously integrates the “Three Teachings” of Confucianism, Taoism, and Buddhism, as well as elements from Christianity and Islam, into a single religious framework. Confucian influences appear in the stress on ethical conduct, social harmony, and filial piety; Taoist elements inform its concern with spiritual cultivation and alignment with a higher order; Buddhist contributions are evident in the doctrines of karma, rebirth, and the quest for liberation from suffering and the cycle of reincarnation. Alongside these, Caodaism affirms that all these paths ultimately point toward the same Supreme Being and share a common moral core. The goal is universal salvation understood as both personal spiritual liberation and the eventual reconciliation of all religions.

Ethical and spiritual practice occupies a central place in Caodai life. Followers are called to cultivate virtues such as love, justice, peace, tolerance, honesty, and social responsibility, often expressed through charity and service to others. Moral discipline is articulated through precepts that prohibit killing, stealing, adultery, lying, and the consumption of alcohol, and vegetarianism is strongly encouraged as a concrete expression of compassion and non‑violence. Regular prayer and meditation, performed multiple times daily, are joined with participation in communal worship, ritual observances, and personal self‑cultivation. Through these practices, adherents seek to purify karma, progress through spiritual realms, and ultimately return to union with the Supreme Being.

Caodaism also envisions a structured spiritual and institutional order that mirrors its theological synthesis. Cosmologically, it speaks of a hierarchy of spiritual beings—Buddhas, Immortals, Saints, and other elevated spirits—who assist in humanity’s moral and spiritual evolution under the sovereignty of Cao Đài. Organizationally, it has a hierarchical clergy and an institutional framework that combines elements reminiscent of both Confucian and church‑like structures, with roles for both men and women in religious life. This blend of universalist theology, disciplined ethical practice, and organized communal worship reflects an attempt to offer a comprehensive path that honors the world’s religious heritage while pointing toward a shared spiritual destiny.