Answer:
I sleep by day, I fly by night. I have no feathers to aid my flight.
As destructive as life, As healing as death; An institutioner of strife, Just as prone to bless. It is all that is good, Yet with an evil trend; As it was the beginning of things, It can also be the end.
I climb higher when hot, But beware my rage, I’ll kill with a breath, If I can escape my cage
I don't think or eat or slumber. Or move around or fear thunder. Just like you I look the same but I can't harm you or be your bane.
Known to accessorize with feathers, trumpets, and harps.
I am rarely touched but often held. If you are smart you'll use me well. What am I?