Many of the eighteen orthodox Puranas mention the Buddha in a less favouring light. They present the birth of the Buddha as a ploy by the Supreme God Vishnu to corrupt demons and sway them from Vedic teachings. Only by leading them astray with his teachings could the demons be destroyed. This belief is sometimes associated with the Asuras of Tripura (the three citadels) as well as others. Literature from the International Society for Krishna Consciousness, on the other hand, maintains that Krishna took the appearance of an atheistic teacher out of benevolence, in order to trick atheists into worshipping God (i.e., himself).