Lak Ni Kham [c18th century]

The content of this manuscript is about the position of khon or spirit in the human body on different days of the month. It is mentioned that on the 17th day the spirit rests on the head, on the 18th day it rests on the neck, on the 19th day on the body, on the 20th day on the tongue, on the 21st day on the skin, on the 23rd day on the leg, on the 25th day palm and so on.