Answer:
I think you live beneath a roof that is upheld by me; I think you seldom walk abroad but my fair form you see; I close you in on every side you very dwelling pave and probably I'll go with you At last into the grave.
I can be found in water but never wet
The sun bakes me, the hand breaks me, the foot treads on me, and the mouth tastes me. What am I?
Drop me and the world will shatter. You can always find me where you empty your bladder. What am I?
What is so fragile that saying its name breaks it?
No matter how little or how much you use me, you change me every month.