According to Hindu scriptures, Rakshastal was created by Ravana for the express purpose of garnering superpowers through acts of devotion and meditation to the god, Shiva, who resided on Mount Kailash. It was upon the banks of a special island in this lake that he would make a daily offering with one of his ten heads as a sacrifice to please Shiva. Finally, on the tenth day, Shiva was moved enough by his devotion to grant Ravana his wish to obtain superpowers.