text: In the Vedic tradition, soma () is a ritual drink of importance among the early Vedic Indo-Aryans. The Rigveda mentions it, particularly in the Soma Mandala. Gita mentions the drink in chapter 9. It is equivalent to the Iranian haoma.
  The texts describe the preparation of soma by means of extracting the juice from a plant, the identity of which is now unknown and debated among scholars. Both in the ancient religions of Historical Vedic religion and Zoroastrianism, the name of the drink and the plant are not exactly the same.
  There has been much speculation about the most likely identity of the original plant. Traditional Indian accounts, such as those from practitioners of Ayurveda, Siddha medicine, and Somayajna called Somayajis, identify the plant as "Somalata" (Cynanchum acidum).
  Non-Indian researchers have proposed candidates including Amanita muscaria, Psilocybin mushrooms, Peganum harmala and Ephedra sinica.
  Etymology
  Soma is a Vedic Sanskrit word that literally means "distill, extract, sprinkle", often connected in the context of rituals.