The topic of this paper includes the religions of Japan and occultism as an official practice of folk beliefs, which over time has been accepted in state religions. Throughout the history, terminology, and social situation of Japan in certain periods of correlation with other nations, the evolution of religion and the Japanese worldview has been shown. The aim of the paper is to present the religions of Japan and to determine how occultism is the foundation of the history of religion, which survives to this day in spite of state bans. In addition, with the exception of a certain superstition, I place special emphasis on the adequacy and sophistication of practices (e.g., Onmyōdō and shugendō) are far from what we would consider backward or inferior compared to today’s action in understanding reality. Japan’s religions are guided by an inner sense in creating ideas of truth. Even divinations and rituals that we can assume have survived for centuries in a more or less unaltered form act as a medium between practitioners and the forces of nature. Furthermore, Chinese practices, Buddhism, and Christianity (to a much lesser extent) are just puzzles in the great puzzle that the Japanese people have been putting together for generations and forming the worldview we recognize today as Japanese, with a particular view of life and thus death. From this, the conclusion inevitably is the observation that religion goes hand in hand with philosophy, and folk practices experiment with these inexplicable phenomena. Consequently, the Japanese religion contains the meaning of the share of occult practices that corresponded to what the Japanese people considered to be approaching a universal answer to the question of human ultimate truth.