Moving one step closer to Bodhichitta, the pure consciousness, Atisha gives us an insight into the nature of all phenomena. He says, all that you experience is memory, which means it is all past. You are just repeating the past throughout your life and there is nothing new that is happening. The new is an illusion. Use this insight as a meditation technique to consider every phenomenon as a past memory and move towards eternal awareness. Atisha encourages us to examine the nature of this eternal, unborn awareness - that which was not created by anything. What you experience as sensory awareness or cognitive awareness is arising out of body-mind construct that we have. It takes birth and dies in it. Every night in deep sleep you lose that awareness but there is something more, beyond that which was always there, will always be there. That eternal awareness is what Atisha is referring to and asking us to explore.