Guru Yoga is an important aspect of the tantric practice of Mahayana Buddhism and the foundation on which the whole tantric structure is built; it is also the force that gives vitality to a practitioner's meditation. Unlike other systems, tantric meditation depends largely upon inspiration transmitted in an unbroken lineage through a living person, the teacher. Who better than the Dalai Lama can provide a proper understanding of this practice for Tibetan Buddhists.