Answer:
I'm the source of all emotion, but I'm caged in a white prison.
What can be swallowed, But can also swallow you?
What has 4 legs in the morning, 2 legs in the evening and 3 legs in the night?
Walk on the living, they donโt even mumble, Walk on the dead, they mutter and grumble. What are they?
My first is in fish but no in snail. My second is in rabbit but no in tail. My third is in up but not in down. My fourth is in tiara but not in crown. My fifth is in tree you plainly see. My whole a food for you and me.
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.