Having no underlying spiritual beliefs to mitigate suffering, are atheists inevitably seeing the world through a glass darkly?
The Christian democratic states in WW2 were pulverized within weeks by the Germans, only the Orthodox/secular Greeks and godless Soviets really put up a good fight against the German advance. The Soviet ideology was spiritual in the sense of being animated by living dogma.
Spirituality should not be about feeling devout. Sentimentality precludes judgment. Mystics, shamans, and sham philosophers have their heads in the clouds. Philosophy in particular has shed it's formerly scientific character and has been made a trade of fools. It went off-the-rails when individuals such as Socrates and Parmenides turned their back on the observation of the senses and Protagoras came to the forefront with his controversial arguments.
The only clear-headed people today seem to be men of science. Consequently, every scientist as well as inventors who endeavor to investigate and discover the forces of nature can be considered spiritual, since they serve life. Every commodity you enjoy today is a product of science.
Theologians and priests run away from problems and contradictions when it suits them, such as Augustine, C. S. Lewis, and Albert Schweitzer. The Christians are probably the most pessimistic religionists, only rivaled by Buddhists (who are not atheists), despite Buddhism's realistic attitude towards suffering.
Catholicism eliminates effort by assuring forgiveness for sins while Protestantism eliminates effort by overemphasizing belief. Calvinism teaches a grotesque perversion of fate's operations by doing away with free will altogether.
In fact, most surviving religions seem to have degenerated into a fatalistic form, including Hinduism and Islam. Their adherents typically do not desire self-responsibility and prefer to leave their affairs to "god". I believe it was Julian "the Apostate" who was the first to accuse Christianity of being Oriental, for it has abandoned every sound notion promulgated by the Greeks/Romans.
"For now we see through a glass, darkly; but then face to face: now I know in part; but then shall I know even as also I am known." 1 Corinthians 13:12
How convenient of you to omit the preceding verse and the context.
In this letter, "Paul" condemns knowledge without life, suggests that the pursuit of knowledge without application can barbarize. Ironically, the sovereignty of reason was originally proclaimed by Christianity before it shunned this faculty which has been generously bestowed upon mankind by a kind universe. Deists are closer to "god" than theists. Thomas Paine's
Age of Reason is a bible in itself.