Vajrayana Mahamudra is a very special method for attaining great enlightenment in one short human life. Maha or ‘great’ refers to the very subtle mind of spontaneous great bliss, and ‘mudra’ refers to ultimate truth, or emptiness – the ways things actually exist. Mahamudra, therefore, is the union of spontaneous bliss and emptiness. To attain this union, we must first receive a Highest Yoga Tantra empowerment and then gain some experience of self-generation as the Deity. By following this prayer booklet we first perform the preliminary practices of self-generation as the Deity Heruka – the Buddha of compassion in Highest Yoga Tantra – and then we engage in the actual training in Mahamudra meditation.