The Essence of Clear Meaning
A Commentary on The Sharp Vajra of Conscious Awareness Tantra 
by by Dudjom Lingpa
During this retreat Alan Wallace gave a commentary on this text, and focused on Shamatha and Vipashyana in the Tradition of the Great Perfection.
Shamatha methods are most commonly emphasized in the Dzogchen tradition:
1] Settling the mind in its natural state, in which one attends to thoughts and other mental events, and
2] Shamatha without a sign, in which one rests in awareness of awareness itself.
Instruction in these two methods was based on teachings by Dudjom Lingpa, Lerab Linga, and Padmasambhava.
The Dzogchen approach to vipashyana focuses especially on cultivating insight into the empty and luminous nature of the mind, and instruction on this practice was based on the teachings of Padmasambhava.
Through such practices, we can explore the inner stillness, emptiness, and luminosity of awareness, which can prepare us for fully realizing the deepest dimension of awareness, primordial consciousness.
This retreat is suitable for Buddhists and non-Buddhists.
The retreat took place on 8th-15th June 2012, on Holy Isle, Scotland.