Philosophy of Nature by Alan Watts

I believe that if we are honest with ourselves, that the most fascinating problem in the world is, ‘Who am I?’ What do you mean, what do you feel, when you use the word I, because it’s so mysterious, its so elusive. What you are in your inmost being escapes your examination in rather the same way that you can’t look directly into your own eyes without using a mirror. And that is why there is always a profound element of mystery in the problem of who we are.