Out of many beliefs of Rumian peasantry, one of the most frightening are tales about dybuks.
Dybuk is said to be a spirit of a man, who can't find peaceful rest because of serious sins commited at his life. He haunts the lands looking for bodies he can take in possession. Once he finds a victim, he inhabits his body until he finds contrition.
This is what our song is about. Prepare yourselves and try not to get haunted.