Answer:
I am a small paradise surrounded by dryness and heat.
Every dawn begins with me. At dusk I'll be the first you see and daybreak couldn't come without. What midday centers all about. Daises grow from me I'm told. And when I come I end all code but in the sun I won't be found. Yet still each day I'll be around.
I am a tool for fairies.
I make you weak at the worst of all times. I keep you safe, I keep you fine. I make your hands sweat and your heart grow cold. I visit the weak, but seldom the bold. What am I?
With a halo of water and a tongue of wood; stone as skin long I stood.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.