Answer:
He has married many women but has never married.
I am the heart that does not beat. If cut, I bleed without blood. I can fly, but have no wings. I can float, but have no fins. I can sing, but have no mouth.
Five hundred begins it, five hundred ends it. Five in the middle is seen. First of all figures, the first of all letters. Take up their stations between. Join all together, and then you will bring before you the name of an eminent king.
One by one we fall from heaven down into the depths of past, And our world is ever upturned so that yet some time we’ll last.
He has married many women, but has never been married. Who is he?
I'm the source of all emotion but I'm caged in a white prison.