What are the constitutional provisions regarding the religion of Japan?

Japanese religion presents pluralism, and now the Japanese constitution guarantees the freedom of religion of the people. Based on historical factors, Shintoism and Japanese Buddhism are the main religions and culture of Japan. Most Japanese also worship Shinto and Buddhism as beliefs. These two religious rituals have been integrated with Japanese life, such as weddings and funerals. But many Japanese do not have a specific religious belief (not belonging to any religious organization).