KAPALA: The skull cup, known as kapala in Sanskrit, is fashioned from the oval upper section of a human cranium. It serves as a libation vessel for a vast number of Vajrayana deities, mostly wrathful. As a ritual implement, the selection of the right skull is of immense importance for the success of the ritual. The skull of a murder or execution victim is believed to possess the greatest tantric power; the skull of one who has died from a violent or accidental death, or from a virulent illness, possesses a medium magical power; the skull of a person who died peacefully in old age has virtually no occult power.