[祈祷]Milarepa Reveals the Secret to Mahamudra's Perfection
After having given Gampopa all the necessary instructions on meditation, Milarepa told him, “Now it is up to you to go and practice.” As Gampopa was leaving, Milarepa accompanied him for a stretch. At one point he stopped and told Gampopa, “I have given you all the teachings, but there is one instruction I have held back.”
Gampopa thought that he should make a mandala offering, and as he made preparations to do so, Milarepa said, “There is no need to offer a mandala. I will just give you this teaching.”
Milarepa turned around, lifted his skirt, and bared his buttocks. They were so calloused that Gampopa could not tell whether they were made of flesh, stone, or wood.
After he had given his student a good look, Milarepa said, “If you want to reach perfection in meditation practice, then you should sit as I have. I sat on solid stone continuously for so long that my butt is like a fossil—it’s as hard as stone. You should train with this kind of perseverance. That is my last instruction.”
It is not sufficient to look at where you are standing and think that you have arrived somewhere else. Recognizing the awakened state of rigpa is not enlightenment, but the path towards enlightenment. You still need to develop the full strength of this recognition by training continually.

~ From Freedom in Bondage: The Life and Teachings of Adeu Rinpoche, translated by Erik Pema Kunsang and compiled by Marcia Schmidt, Published by Rangjung Yeshe Publications, 2011.