Answer:
Searing 'cross the pitch-black skies I scream in celebration Yet moments later my outburst through I am naught but imagination.
I am a sharp looking horse with a flaxen tail. The longer I run the shorter my tail becomes.
I am useless when together but useful when I am broken apart. What am I?
I am rarely touched but often held. If you are smart you'll use me well. What am I?
I am easy to waste and unstoppable
What is the middle of water but is not an island?