Shinto is an ancient Japanese religion that believes spiritual powers exist in nature. Shinto followers worship at shrines located in natural settings, which are marked by a torii archway. Within the shrine is an inner hall where the kami (spirits) are present. Worshipers purify themselves before entering and offer prayers and gifts to summon the kami. The most important kami are Amaterasu, the sun goddess and ancestor of the Japanese emperors, and Inari, the producer of rice, an important food in Japan. It is common for Japanese people to practice both Shintoism and Buddhism, as the beliefs are compatible and not contradictory.