Title: Secret of the Vajra world
Subjects: History, Mahāmudrā (Tantric rite), Rdzogs-chen, Spiritual life, Tantric Buddhism, Yoga, Mah{macr}amudr{macr}a (Tantric rite), Vajrayāna, Tantrisme, Rdzogs-chen (Rñiṅ-ma-pa), Buddhism
Places: China, Tibet