Answer:
Weight in my belly, trees on my back, nails in my ribs, feet I do lack. What am I?
Golden treasure I contain guarded by hundreds and thousands. Stored in a labyrinth where no man walks Yet men come often to seize my gold. By smoke I am overcome and robbed then left to build my treasure anew.
You seek me out when your hunger's ripe. I sit on four legs and smoke a pipe.
I am seen in the water. If seen in the sky I am in the rainbow a jay's feather and lapis lazuli.
I am the home for feathery animals.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?