Why apart from Christ man will always find himself unsatisfied

All memory is tragic in the end: The failures, humiliations, betrayals, sufferings, or calamities that we recall for the most part cannot now be undone; the joys, triumphs, discoveries, and raptures that we recall are for the most part long gone. All memory is haunted by the traces of a fall from grace or of an Eden to which we cannot return.

David Bentley Hart, “From a Lost World,” First Things (January 2014).