One cannot prove anything here, but it is possible to be convinced.” “How? By what?” “By the experience of active love. Try to love your neighbors actively and tirelessly. The more you succeed in loving, the more you’ll be convinced of the existence of God and the immortality of your soul. And if you reach complete selflessness in the love of your neighbor, then undoubtedly you will believe, and no doubt will even be able to enter your soul. This has been tested. It is certain.”
David Bentley Hart writes in "Atheist Delusions" of a truth that only charity can reveal:
"In the light of Christianity's absolute law of charity, we came to see what formerly we could not: the autistic or Down syndrome or otherwise disabled child, for instance, for whom the world can remain a perpetual perplexity, which can too often cause pain but perhaps only vaguely and fleetingly charm ordelight; the derelict or wretched or broken man or woman who has wasted his or her life away; the homeless, the utterly impoverished, the diseased, the mentally ill, the physically disabled; exiles, refugees, fugitives; even criminals and reprobates. To reject, turn away from, or kill any or all of them would be, in a very real sense, the most purely practical of impulses. To be able, however, to see in them not only something of worth but indeed something potentially godlike, to be cherished and adored, is the rarest and most ennoblingly unrealistic capacity ever bred within human souls. To look on the child whom our ancient ancestors would have seen as somehow unwholesome or as a worthless burden, and would have abandoned to fate, and to see in him or her instead a person worthy of all affection-resplendent with divine glory, ominous with an absolute demand upon our consciences, evoking our love and our reverence-is to be set free from mere elemental existence, and from those natural limitations that pre-Christian persons took to be the very definition of reality."