His Holiness the Dalai Lama gave the keynote speech at a conference to commemorate the 600th anniversary of Je Tsongkhapa’s giving the Fourfold Interwoven Commentary on Guhyasamaja Tantra at Sera Chöding, and entrusting his tantric teachings to the care of Jetsun Sherab Sengey. “Buddha Shakyamuni’s teachings have lasted for about 2,600 years,” said His Holiness. “Tibetan Buddhism represents a complete teaching….the philosophy it expresses is profound.”