Delok (Tib. 'das log) existed in the Tibetan cultural world and were mostly women. They "died" and then travelled in the netherworld -- hells, and less often paradises. They came back to earth to tell people what they had witnessed and bring messages from the dead to the living. Their experience became a narrative, either oral or written. Here we will examine this particular religious phenomenon, its possible influences, its meaning in a Buddhist context as well as its linkage to shamanistic experiences.