YOU and I

If I am I because you are you
And you are you because I am I
Then I am not I
And you are not you.
But if I am I because I am I
And you are you because you are you
Then I am I
And you are you
And we can talk.

The most complicated yet simple I have ever found.I really don't know who wrote this.But this is making me think and think ,I think for ever............