“One day, Milarepa warned Gampopa that the time had come for him to depart.
He told Gampopa, “You have received the entire transmission. I have given you all the teachings, as if pouring water from one vase into another. Only 1 last instruction remains that I haven’t taught you. It’s very secret.”
He then accompanied Gampopa to a river, where they were to part. Gampopa made prostrations to take his leave and started across. But Milarepa called him back: “You are a really good disciple. Anyway I will give you this last teaching.”
Overjoyed, Gampopa prostrated 9 times, then waited for the instructions. Milarepa proceeded to turn around, pull up his robe, showing Gampopa his bottom. “Do you see?”
And Gampopa said, “Uh…yes…”
“Do you really see?”
Gampopa was not sure what he was supposed to see. Milarepa had calluses on his buttocks; they looked as though they were half flesh and half stone.
‘You see, this is how I reached enlightenment: sitting and meditating. If you want to reach it in this life, make the same effort. This is my final teaching. I have nothing more to add.”
~ Kalu Rinpoche’s “Luminous Mind”