What is "akathaso"

Akathaso are Burmese nats (spirits) who inhabit the tops of trees and serve as guardians of the sky. Akathaso is derived from Pali akasa deva , which literally means "deity of the sky."

They are related to yokkhaso and bhummaso , who respectively live on the trunks and roots of the trees. Bhummaso are guardian spirits of the earth while yokkaso are guardian spirits of trees.