It consists of sacred geometrical, animal and deity designs accompanied by Pali phrases that are said to offer power, protection, fortune, charisma and other benefits for the bearer.
Tattoos believed to offer protection and other benefits have been recorded everywhere throughout both mainland Southeast Asia and as far south as Indonesia and the Philippines.
[2] While the tradition itself originates with indigenous tribal animism, it became closely tied to the Hindu-Buddhist concept of yantra or mystical geometric patterns used during meditation.
Some yantra designs have been adapted from pre-Buddhist shamanism and the belief in animal spirits that was found in Southeast Asia and incorporated into Thai tradition and culture.
In recent years Hollywood celebrities such as Angelina Jolie, whose tattoos were inked by Ajahn Noo Ganpai with Old Khmer script Sak yant in Thailand, have made them popular among women.