Answer:
Thousands lay up gold within this house. But no man made it. Spears past counting guard this house, but no man wards it.
What is a five-letter word that has brain in it?
Black we are and much admired. Many seek us if they are tired. We tire the horse, and comfort man, and turn White when we've fulfilled your plan.
I bind it and it walks. I loose it and it stops.
Always old, sometimes new. Never sad, sometimes blue. Never empty, sometimes full. Never pushes, always pulls.
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.