In Caodaism, the Supreme Being is known as Cao Đài, often rendered as Đức Cao Đài, a title that literally means “High Tower” or “Highest Lord” and signifies the loftiest, all-encompassing divine reality. This Supreme Being is understood as the single creator and sustainer of the universe, the ultimate source from which all existence flows. At the same time, Cao Đài is described as formless and ineffable, transcending any single religious image or concept. The same divine reality is regarded as the God revered in different world religions, revealed under various names and forms according to culture and historical context.

Divinity in this tradition is conceived through a monotheistic core combined with a richly articulated spiritual hierarchy. Cao Đài stands as the one supreme deity, yet this one God manifests through numerous divine beings—Buddhas, sages, saints, and enlightened spirits—who serve as intermediaries and exemplars. Figures such as Buddha, Confucius, Laozi, and Jesus Christ are honored within this hierarchy, alongside other saints and ancestral spirits, as expressions of the same ultimate source. These diverse manifestations are seen not as rival gods, but as different facets or revelations of the single Supreme Being, guiding humanity toward moral refinement and spiritual awakening.

This vision of divinity carries a strong emphasis on the unity of religions. All major religious traditions are interpreted as distinct yet convergent paths, each granted by the same Supreme Being to suit the needs of different peoples and eras. Caodaism thus portrays God as both transcendent—beyond complete human comprehension—and immanent, actively engaged in human history and spiritual development. Through this syncretic lens, the multiplicity of religious symbols and teachings becomes a tapestry woven from a single divine thread, inviting seekers to recognize one universal source shining through many sacred forms.