There are two types of “spirits” featured in the Phi Ta Khon procession namely the “Phi Ta KhonYai” the supreme Phi Ta Khon, and the “Phi Ta KhonLek”, the ones that are commonly found. The making of the Phi Ta KhonYai involves the performance of a sacred ritual to seek the blessings of the supreme powers before work on the Phi Ta KhonYai masks can be initiated. It is also a task reserved exclusively for the descendants of families in which the tradition of making Phi Ta Khon masks has been practised for several generations. The Phi Ta KhonYai is made of bamboo and is dressed in either male or female attire.