Meditation, self hypnosis and hypnosis. Dolores Cannon has a dvd on her site that is good, with group regression.
Learn to lucid dream as well, or get close, more awareness of dreams, because this is work on consciousness and meditation, giving yourself permission
to remember, all helps flex that muscle of your energy centers and psi.
Chakra meditations, not the goofy ones. They really allign to levels or schools, and also to The Way, if you read this article.
There are many meditations or contemplations, days of the week, morning, evening, that pertain to similar energy centers as the chakra's.
Mine came spontaneously, watching videos with trees and vegetation on mars, I remembered. The tie between Mars, Lemuria and even Egypt was strong.
But the odd thing is, in my memory, we were The Equality, and higher mind, telepathically connected, and I was about 11.
Reading that link above was like, coming home! It was a self recovery kind of, as that is something that is the Old Knowledge and not just 8000 but
known through past cycles and off planet as well.
Its working with energy and consciousness, dream time, and meditation, or hypnosis when its the deep meditative kind.
You can even do a lucid dream style meditation with delta binaurals, though I need coffee or I go to sleep, quit breathing first often and instead
wake up. But you can ask questions, like a self hypnosis, and visualize a door opening to where you were in the past.