One wolf is capable of much, but not as much as a pack. A pack is capable of great deeds, but not as much as a lodge. A lodge can accomplish much, but a tribe is greater.
If there is one thing that unifies wolf, human and werewolves, it is unity itself — the intrinsic knowledge that working together can produce greater results than working independently. While the werewolf’s need to hunt in many ways supersedes the biggest reason humanity had for uniting in the first place — agriculture — the fact remains that no wolf is born with a deer in its hands, and almost all Uratha were dependant on the power of a unified humanity at least once in their lives for the basest of survival.
The Lodge of the Union has dedicated itself to the idea of unity in its extreme: their goal is nothing short of the unification of everything. They see unity as the ideal in all aspects of the world — the united land of Pangaea, the unity of the tribes of Father Wolf before the fall, the union of human and wolf and so on. Fragmentation, they argue, has caused much of the cosmos’ disharmony.