What is a Rak-Yom?

Background

In Thai folklore, a rak-yom (รัก-ยม) is a ghost that appears as two little boys (brothers), similar to the Kuman Thong.

In necromantic practice, this refers to a glass amulet with two humanoid figures inlaid in oil.

Rak is a thick, black lacquer made from the sap of a Burmese lacquer tree and various other ingredients. It is commonly used to paint and protect amulets. The term yom, in turn, is a form of salutation used by monks to address a lay follower.