Answer:
It is a part of us, and then replaced. It escapes out bodies, to a better place. The world becomes its sizeable home. Its passions unrestraint, the planet it roams.
I can be used to type and point you see. But don't forget, you can count on me. What am I?
The itsy bitsy teeny weeny yellow polka dot variety is quite popular.
Give it food and it will live, give it water and it will die.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?
What sphinxes employ and players enjoy.