Answer:
I am a box that holds keys without locks, yet they can unlock your soul.
I build up castles. I tear down mountains. I make some men blind. I help others to see.
I am always in front of you, but you will never see me. What am I?
I saw a strange creature. Long, hard, and straight, thrusting into a round, dark opening. Preparing to discharge its load of lives. Puffing and squealing noises accompanied it, then a final screech as it slowed and stopped.
The higher I climb, the hotter I engage. I cannot escape from my crystal cage.
If lightning strikes an orchestra who is the one most likely to get hit?