Shinto shrines are social houses that worship and honor various deities in Shintoism, and are the oldest type of religious architecture in Japan. Due to the close connection between Shintoism and the daily life of the Japanese people, shrines are very common. Since the 7th century, shrines have implemented a "replacement" system, which means they are rebuilt every few decades. Shinto shrines generally do not have incense offerings, whether it is a traditional tradition or a modern evolution. When people go to a shrine, they usually first clean their hands with a long handled wooden spoon by the pool in front of the shrine, then go to the shrine worship halls on both sides of the ridge, throw some change into the donation box with wooden bars, pat their hands a few times, and pray together.