Answer:
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?
Useful tool for who in darkness dwell. Within you, corrupting like a deadly spell.
It holds most knowledge that has ever been said. But is not the brain, is not the head. To feathers and their masters, it's both bane and boonΒ One empty, and one full.
What gets beaten, and whipped, but never cries?
People take me on walks and I run and have fun. What am I?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?