Moving past the truism that the military and religious elites of medieval Europe did not see eye to eye over how to practice a violent profession under the aegis of a pacifist theology, this essay looks at the combinations of both practices and presuppositions about eternity that enabled some medieval Christian warriors to harmonize their warfare with the promises of what awaited them after death. Those promises were, of course, both negative and positive. One thing that becomes quickly unavoidable is the immanence of the Beyond: the afterlife was not only a place/time to arrive at, but an elastic phenomenon impinging on the here-and-now. The Escher-like quality of eternity meant that martial elites not only paid ahead to reduce their purgatorial sentences, they also invested now for the souls of the already dead, and they expected that their preferred saints, as well as their relatives and friends in the afterlife, could intervene in living affairs, including battles. Far from being guilt-ridden over the violent deeds required by their profession, medieval Europe's Christian elite viewed the afterlife as still having a beneficial (and approving) role to play in contemporary warfare. The very existence of martial saints indicated as much, besides offering another title to earn. Finally, in a further wrinkle, the history of some warriors demonstrated an earthly afterlife as their martial fame was maintained or even completely rebuilt by succeeding generations, again in a reciprocal interplay of military accomplishment and presumed heavenly reward.