Answer:
You seek it out, when your hunger is ripe. It sits on four legs, and smokes a pipe.
Runs over fields and woods all day. Under the bed at night sits not alone, With long tongue hanging out, Resting at your feet until we go for a walk
What relies on columns but isn't a house, and asks for help but can't speak itself?
Man walks over, and man swims under. In times of war, it can be burned asunder. What is it?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?