Answer:
What is so fragile that saying its name breaks it?
I build up castles. I tear down mountains. I make some men blind. I help others to see.
As destructive as life, As healing as death; An institutioner of strife, Just as prone to bless. It is all that is good, Yet with an evil trend; As it was the beginning of things, It can also be the end.
Covered in stone and sun. It's home to many but also none. What is it?
The sharp slim blade, that cuts the wind.
What is always coming but never arrives?