Answer:
Whilst I was engaged in sitting. I spied the dead carrying the living
What has two spines and a lot of ribs, and carries much but never moves?
I never was, am always to be. No one ever saw me, nor ever will. And yet I am the confidence of all, To live and breath on this terrestrial ball.
I bind it and it walks. I loose it and it stops.
Talks like this, a green wise man does. Guess my clue, you will.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?