Answer:
Late afternoons I often bathe. I'll soak in water piping hot. My essence goes through. My see through clothes. Used up am I - I've gone to pot.
Three lives have I. Gentle enough to soothe the skin. Light enough to caress the sky. Hard enough to crack rocks.
It's equally comfortable in an orchestra and a geometry textbook. What is it?
Iron roof, glass walls, burns and burns and never falls.
A kind of weather that comes your way, but add a "D" and it will run away
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.