Answer:
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.
In buckles or lace, they help set the pace. The farther you go, the thinner they grow.
What relies on columns but isn't a house, and asks for help but can't speak itself?
I am seen in the water. If seen in the sky, I am in the rainbow, a jay's feather, and lapis lazuli.
I'm a type of pizza that is folded in half before cooking to contain a filling
If lightning strikes an orchestra who is the one most likely to get hit?