Shintoism is the indigenous religion of Japan that focuses on ritual purification and ancestor worship. Key beliefs include the veneration of kami or spirits, which are found in nature and guide lives by providing fortune. Purification rituals using water are important, as is showing reverence for ancestors and natural forces. The Torii gate marks the transition between human and divine realms at shrines. Shinto lacks a founder but incorporates ancient Japanese animistic traditions. Major texts like the Kojiki and Nihongi connect imperial lineage to divine descent and influence Japanese nationalism. Rituals center around shrine visits and rites of passage.