Answer:
A caribbean shape that makes ships disappear
There are two bodies on the floor. They are surrounded by water and broken glass. How did they die?
I am the outstretched fingers that seize and hold the wind. Wisdom flows from me in other hands. Upon me are sweet dreams dreamt, my merest touch brings laughter.
What has a single eye but cannot see?
Feed me and I live, give me drink and I die.
You use it between your head and your toes, the more it works the thinner it grows.