Caodaism understands the religious landscape as a single, unfolding revelation from one supreme divine source, often named Cao Đài, rather than as a battlefield of competing creeds. The great traditions of humanity—Buddhism, Taoism, Confucianism, Christianity, Islam, and others—are viewed as different branches or stages of this one revelation, adapted to particular cultures and historical moments. From this perspective, religious diversity is not a problem to be eliminated but a sign of the divine speaking in many voices. Such a view naturally undergirds a strong commitment to interfaith respect, since to disparage another religion would be to misunderstand the breadth of the divine plan.

This theology is expressed symbolically and ritually through an inclusive pantheon and syncretic practice. Prophets, sages, and spiritual luminaries such as Buddha, Laozi, Confucius, Jesus, and Muhammad are honored within a single spiritual hierarchy, not as rivals but as collaborators in the same sacred work. The religion’s self-understanding as a later, unifying revelation—sometimes described as a third and culminating period of divine disclosure—places earlier traditions in the role of legitimate precursors rather than obsolete systems. In this way, Caodaism proposes itself as a framework within which the truths of many paths can be gathered and harmonized.

On the ethical and practical level, Caodai teaching emphasizes universal love, nonviolence, and a deliberate respect for all sincere spiritual quests. Followers are encouraged to recognize and preserve the genuine insights present in other religions, and outreach is framed less as a call to abandon former loyalties than as an invitation to a wider sense of unity. Condemning other faiths as false is treated as a misunderstanding of the divine intention, which is seen as fundamentally inclusive and compassionate. This creates a spiritual climate in which dialogue is not merely tolerated but regarded as a religious duty.

In communal life, this vision takes concrete form through participation in interfaith councils, conferences, and cooperative initiatives, both in the tradition’s homeland and in diaspora communities. Caodai representatives often highlight shared moral teachings—compassion, justice, filial piety, and moral self-cultivation—as common ground with other believers. Collaboration with other religious groups on social and humanitarian projects further embodies this ethos of tolerance, turning doctrinal inclusivity into lived solidarity. Through these patterns of thought and practice, Caodaism presents a model of interreligious engagement that seeks reconciliation and mutual enrichment rather than rivalry.