Great, now I get to think up another one. Lessee...

small and Dark.
Miserable (I think)
missing the most important Part.
not quite Here
but not yet There
Falling in more ways the One
Bright gems that lead the way
but not able to Touch them.
climb, climb,
for only Hope is left.
Who am I?
There you go, and yes, there's a reason for the peculiar capitalization.