What are the beliefs behind Wai Kru Ceremony?

The rituals of Wai Kru are believed to have derived from ancient animistic beliefs, Influenced by the spread of Brahmanism from India. This is evident in the Wai Kru ceremonies of traditional dance and music, where specific mention is made to Ishvara in Thai Massage, Where specific mention is made to Shivaga Komarpaj and Narayana, along with other Vedic deities. Wai Kru has for most of history existed as a folk tradition, passed on from generation to generation throughout the years. The Wai Kru ceremony in its modern form, Which is held in most schools today, originated at Triam Udom Suksa School in 1941.