Answer:
I can be written, I can be spoken, I can be exposed, I can be broken.
Surname of the pilot of the Millennium Falcon.
I cannot be other than what I am, until the man who made me dies. Power and glory will fall to me finally. Only when he last closes his eyes.
The more holes you cover the lower it goes.
I am round as a bowl, deep as a tub, but all the world's water couldn't fill me up.
People take me on walks and I run and have fun. What am I?