<DIV>From Wisdom's acclaimed Studies in Indian and Tibetan Buddhism series, researcher and scholar Sam van Schaik introduces the Nyingma tradition of Tibetan Buddhism, looking closely at its practice of Dzogchen?and one of Dzogchen's seminal figures, Jigme Lingpa?to make an extensive analysis of a core tension within Buddhism: does enlightenment develop gradually, or does it come all at once?</div>