I saw that on the floor in front of the altar, facing me, sat a yogi—in lotus posture, in deep meditation. When I looked at him more closely, I realized that he had my face. I started in profound fright, and awoke with the thought: “Aha, so he is the one who is meditating me. He has a dream, and I am it.” I knew that when he awakened, I would no longer be.

Carl Gustav Jung, Memories, Dreams, Reflections