Shen

A type of spirit/deity. The majority of supernatural beings of the celestial are either shen or immortals. Shen typically have a celestial and true form and can also take human form.

Types of Shen
Types of shen seen in the books include
 * Snake
 * Turtle
 * Tiger
 * Stone
 * Dragon
 * Bird
 * Fox

This list is not complete

Non-Eastern Shen
There is mention of both western and southern shen existing but little to no mention of made of them other than the grandmother of all rocks.