Answer:
I am gentle enough to soothe your skin, light enough to fly in the sky, strong enough to crack rocks. What am I?
What force and strength cannot get through I with my unique teeth can do.
I am a tale in childrens' minds. Though an illusion, I occur every night. I give them a fantasy, I give them a fright. What am I?
I am a room that has a roof but no walls. What am I?
I am easy to see, but no one likes looking at me. Without me, there would be no you. What am I?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.