The rituals of wai khru are believed to have derived from ancient animistic beliefs, influenced by the spread of Brahmanism from India. This is evident in the wai khru 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 khru has for most of history existed as a folk tradition, passed on from generation to generation throughout the years.[1]
The wai khru ceremony in its modern form, which is held in most schools today, originated at Triam Udom Suksa School in 1941. The sarabhañña chant was written by Thanpuying Dussadee Malakul Na Ayutthaya (the wife of ML Pin Malakul, director of the school at the time)