"A yogi practises tummo, the Tibetan form of Kundalini yoga. As the Seventh Dalai Lama wrote: 'Vital energies generated by inner or outer means are drawn into one's central channel, causing the mystic fires to blaze....... The letters AH and HAM flare, fall and vibrate, transporting one to the end of the primordial path of insight and Great Bliss. Lights from the mystic fire flash into a hundred directions, summoning the blessings of Buddhas as boundless as space.'"