Ground rigpa (Tib. གཞིའི་རིག་པ་, Wyl. gzhi'i rig pa) acts as the basis for all of samsara and nirvana, and is identical to the subtle clear light. This is the pristine awareness one experiences at the time of death, but not during the ordinary waking state. It is from this awareness that the foundation consciousness arises.
- Sleeping, Dreaming and Dying. p.122.
- His Holiness the Dalai Lama , Dzogchen – The Heart Essence of the Great Perfection, published by Snow Lion. ISBN 1-55939-156-1.
- His Holiness the Dalai Lama, The Vision of Enlightenment, Tertön Sogyal Trust. Also published by Wisdom Publications, 2007, as Mind in Comfort and Ease. The Vision of Enlightenment in the Great Perfection. ISBN : 0861714938