There is some evidence regarding the use of deliriant Datura seeds (known as candabija) in Dharmic rituals associated with many tantras – namely the Vajramahabhairava, Samputa, Mahakala, Guhyasamaja, Tara and Krsnayamari tantras – as well as cannabis and other entheogens in minority Vajrayana sanghas. Ronald M Davidson says that in Indian Vajrayana, Datura was:
