Answer:
I am carried by mad animals.
I am seen in the water. If seen in the sky I am in the rainbow a jay's feather and lapis lazuli.
Deep, deep, do they go. Spreading out as they go. Never needing any air. They are sometimes as fine as hair.
I am a candy that looks like a shepherdβs staff.
I am heavy forward but backward I'm not.
Runs over fields and woods all day. Under the bed at night sits not alone, With long tongue hanging out, Resting at your feet until we go for a walk