According to "Golden Guide: Hallucinogenic plants," the history of fly amanita could go even further back, thousands of years, to ancient India, where it was used to induce a religious fervor. In fact, fly amanita mushrooms may have been the main ingredient in soma, a ritual drink frequently mentioned in the Hindu religious text, the Rigveda.
Soma, whose use has since died out, was made with the juice from the stalks of certain plants. Hindu tradition says the drink and the plant, which is also considered a god, all carry the same name.
But fly amanita has long been a strong contender for the real identity of that plant, mainly because of the effects of soma mentioned in Hindu religious texts, and of ceremonial urine drinking.