Belief in reality

What you call reality is the part of your imagination that you believe in.

Imagine that

Am I not who I am?
Are you not who you are?
Is this not what it is?
What could possibly be different?

Oh, you can imagine a world where some things are different?
So you've got imagination.
Imagine that!

Can you imagine a world where you have no imagination to imagine things could be different?
Add some imagination and that's it.