Quote Originally Posted by Despotus
As darkness falls,
Thoughts of a lost love.
From earth to sky it calls;
They remember he who's above.
One who is carried
And one who is driven,
Comparable but varied,
Use a skill that was given.

What does "it" refer to?
Not their skill set either.

I have added the two lines that I originally thought would make the riddle too easy, as well as some punctuation. I hope this will help to get you thinking along the right lines. I'm looking for the "it" that is mentioned in what is now line 3 of the riddle. Remember this is not about a conventional battle skill, but something else. I hope this is enough of a hint for you. If not, I will start to break down each line for you soon.