Answer:
The more you take, the more you leave behind.
This thing runs but cannot walk, sometimes sings but never talks. Lacks arms, has handsΝΎ lacks a head but has a face.
My first is a body of water. My second is me. My third came before. My fourth before all three. My fifth sounds like my first. My sixth is in a lake. Put all six together to make an animal that will keep you awake.
What goes in, but never through? I've got some and so do you. We might lend one, or even two, but only if our trust is true.
I cannot be other than what I am, until the man who made me dies. Power and glory will fall to me finally. Only when he last closes his eyes.
You use it between your head and your toes, the more it works the thinner it grows.