Answer:
I'm the source of all emotion, but I'm caged in a white prison.
Inside a burning house, this thing is best to make. And best to make it quickly, before the fire's too much to take.
Autumn leaves and bad bowlers wreak havoc on this
Dies half its life. Lives the rest. Dances without music. Breathes without breath.
Two brothers we are, great burdens we bear. All day we are bitterly pressed. Yet this I will say, we are full all the day, and empty when go to rest.
What is so fragile that saying its name breaks it?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?