Misogi (禊?) is a Japanese Shinto practice of ritual purification by washing the entire body. Misogi is related to another Shinto purification ritual called Harae – thus both being collectively referred to as Misogiharae (禊祓?).
In Kyoto, people douse themselves under Kiyomizu Temple's Otowa no taki (Sound-of-Wings) waterfall, although the majority of visitors drink from the waters rather than plunging into them. Every year, many groups take pilgrimages to sacred waterfalls, lakes and rivers, either alone or in small groups, to perform misogi. Mount Ontake, the Kii mountain range and Mount Yoshino are but a few examples of ancient and well known areas for Misogi in Japan. In the United States misogi is performed at the Tsubaki Grand Shrine of America at the Konryu Myojin no Taki waterfall each morning.
Before encountering misogi, members generally undergo some sort of preliminary purification. Such things as prayers, fasting, or some sort of physical activity is common. Generally, women put on a special white kimono and a headband and men put on a fundoshi (loin cloth) and head band. They then begin furitama (降り魂) or "spirit shaking" by clenching their hands in front of the stomach and shaking them up and down, vibrating the upper torso. The purpose of this is to become aware of/unified with the spirit's presence within. Following this is a "warm-up" or calisthenics (tori-fune 鳥船 or "bird boat" rowing). These two aforementioned practices are sometimes accompanied by special prayers or incantations. After, the leader begins to speak out invocations/prayers that are said to activate the spirit. The followers generally speak along with them, thus affirming the potential for realizing one's own spirit, and thus unifying them with the kami around them.