Lead me from illusion to reality, lead me from darkness to light, lead me from death to immortality, Brihadaranyaka Upanishad 1.3.28. For the Nath Yogis of Northern India this prayer is an expression of their desire to find the One amongst the many and to return to the source of all things. According to the Naths, only a true guru can guide them through the paradoxes of human life in their search for a centre where nothing must exist. This anthropological...