Answer:
What measures out time. Until in time all is smashed to it?
A dagger thrust at my own heart, dictates the way I'm swayed. Left I stand, and right I yield, to the twisting of the blade.
What can be swallowed, but can swallow you?
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.
I have rivers without water. Forests without trees. Mountains without rocks. Towns without houses.
I have two eyes in the front and a lot of eyes on my tail