The Khwan or soul-calling ritual has been practiced for a long time for the Tai ethnic group. There have been a lot of changes about the ritual and these changes are directly related to social factors. The report covers the evolution of the Khwan ritual of the ethnic group in India, Burma and Thailand. There are five components to the ritual, namely, Khwan verses, ceremonial items, the ritual conductor, owners of the souls, and ritual participants. However, the report focuses mainly on the verses because they have been drastically changed. The verses are pivotal to the ritual. As the purposes of the ritual have changes, so has the language of the verses. They started from descriptive and became vulgar and finally are intended for the “feel good” of participants.