Waiting For Godot

From Current Biography, September 1985:

It was while playing the part of Lucky, the slave in Godot, that he had the "Great Experience", as he later termed it, that eventually led to his decision to become a professional actor. In the middle of the final performance of the play, he told Marin Torgoff of Interview magazine [April 1981], "I had this sudden, wonderful understanding about the character just the instant before I was supposed to speak. I had a palpable sensation of control from my fingers out to the audience, that what I did affected them, and I thought: 'My God, this is wonderful!' "