When you love yourself who are you loving and who is doing the loving? Where are you? Behind your eyes? In your chest?  When you debate yourself about whether or not the have that extra slice of cake who are you arguing with?  Are your feet as much you as your mind is? If you got total amnesia would you still be you? Are you a completely different person from one moment ago?  Are you still you if your consciousness is uploaded to the cloud?  And what’s the difference between tomato soup and tomato sauce?