Tantra has special methods how to go on drinking and yet remain aware. YOU cannot be aware even without drinking. Tantra has methods to slowly slowly drink, and keep awareness, not to lose track of your awareness. Slowly slowly, the quantity of your drug has to be increased as you increase in your awareness. A moment comes when — you will be surprised to know, still there are people in the East who practice it — a moment comes, when no drug can affect your consciousness at all.
Then the last thing they try is this: they keep poisonous snakes and they allow the snake to bite them on their tongue; that is the last method. Ordinarily a man will die…. These snakes are absolutely poisonous. Three percent of the snakes in India are dangerous; you cannot survive their bite — once bitten you are gone. But these tantra masters will remain alert even in that moment and they will not die. Their bodies have become accustomed to all kinds of poisons and they have become alert, so alert that no drug can affect them.