Quote Originally Posted by sigurd View Post
Do they have a reason for existence or a goal?

I picture them sort of like Hephaestus's Cyclops.
A reason for existence/goal? If you mean as a race, then no. Then again, what reason does a race need to exist other than for their own sake?

And secondly, what makes you picture them sort of like the Cyclopes? The only similarity I see is the relationship with earth (and the stoneman's relationship with it is much more obvious).