A demon named Ramasun had an axe.Ramasun wanted Mekhala's crystal ball but she flew up into the sky to escape from him.Ramasun chased her,while her crytal ball flashed light and sparkled.This flashing angered Ramasun.So he thew his axe at her. The flash of the crystal ball was said to be lightning and the throwing of the axe was said to be thunder.