there are a range of desires
for instance a person habituated to acts of charity gains the ability to be detached from their possessions (regardless of their metaphysical beliefs). Charity is not a completely "pure" eternal desire, but it is head and shoulders above your usual run of the mill engagements of this life.
In short, a pious atheist might have an easier time of it than a materialistic theist, but it is the exclusive property of the properly situated theist to be completely socialized around the issue of death
(I bet you just luv that last phrase)