Everything Horus Heresy and 40k with more than basic knowledge of the Lord of the Rings and A Song of Ice and Fire.

Without the Dark, there can be no Light,
We have purpose
Without the Lie, there can be no Truth,
We have purpose
Without the War, there can be no Victory,
We have purpose
Without the Death, there can be no sacrifice,
We have purpose
Without the Hope there can be no Future,
We have purpose
Without the Loyalty there can be no one chapter,
We have purpose
Without the Emperor, there is nothing,...
And we would have no purpose