Dream

"Once upon a time, I dreamt I was a butterfly, fluttering hither and thither, to all intents and purposes a butterfly. I was conscious only of following my fancies as a butterfly, and was unconscious of my individuality as a man. Suddenly I awoke, and there I lay, myself again... Now I do not know whether I was then a man dreaming I was a butterfly, or whether I am now a butterfly, dreaming that I am a man." - Chuang-Tzu, 3rd century BC

"You know those dreams are all in your head." Bob Dylan (paraphrased)

So is much of your "reality". Zen Clown