Answer:
I have thirteen hearts but no body or soul.
I am in the past never in the future. I don't exist but have existed. I saw what you saw and that is what I will ever see.
I go in dry and come out wet. The longer I stay in the stronger my surroundings get.
I can be written, I can be spoken, I can be exposed, I can be broken. What am I?
Though desert men once called me God today men call me mad. For I wag my tail when I am angry. And growl when I am glad.
What did the piece of wood say when he saw the screwdriver and screws approaching?