Answer:
In my life I must bare, my bloodline I must share. What am I?
I am very easy to get into,but it is hard to get out of me. What am I?
I reach for the sky but clutch to the ground. Sometimes I leave but I am always around.
I pass before the sun but make no shadow. What am I?
You bind me and I walk. You loosen me and I stop. What am I?
The answer I give is yes, but what I mean is no. What was the question?