Dainichi Nyorai, also known as Vairocana, is a central figure in Esoteric Buddhism and represents the cosmic Buddha. He embodies the ultimate reality and is often depicted as a radiant figure surrounded by a mandala, symbolizing the universe. Dainichi Nyorai is revered for his wisdom and is considered the source of all Buddhas. In Japanese Buddhism, Dainichi Nyorai is particularly significant in the Shingon school, where he is seen as the embodiment of enlightenment. Devotees often engage in rituals and meditation practices to connect with his teachings, seeking spiritual awakening and understanding of the interconnectedness of all existence.