I think that the story would take a good turn if we, the guardians, find out that the ideology of the traveler is actually wrong, so we make it right by fighting the traveler. It would also be cool is if the reason why the darkness is reaching out at us is [u]because[/u] of the travelers presence. The light and the darkness must have balance. If the darkness was stretching farther than it should because of the traveler's (already) stretched light, then we (the guardians) would do right by destroying the traveler. That sounds awesome, but it's just my theory. It's most likely incorrect, but hey, it's fun to make theories.