Answer:
I build up castles. I tear down mountains. I make some men blind. I help others to see.
Creatures of power, creatures of grade, creatures of beauty, creatures of strength. As for their lives, they set everything's pace. For all things must come to live. Under their emerald embrace Either in their life or in their death.
A great mysterious place that the bold have been known to journey into.
I open wide and tight I shut, Sharp am I and paper-cut fingers too, so do take care, I'm good and bad, so best beware.
A word of five letters, Upside down is the same, A shark does this, But it’s not to blame. What is the word?
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.