I recently watched, probably for the fourth time, the movie Men in Black.  Have you seen it?  It's the amusing story of a team of two people (Tommy Lee Jones and Will Smith) whose mission is to monitor aliens from taking over America.  Jones, who has worked for the "alien" agency for many years, recruits Will Smith to be his partner in his quest to deal with the aliens.  After Will Smith agrees to join the team, the agency head informs him that every record of him will be expunged from every database that has ever existed.  In other words, as the director puts it, "It will be as if you never existed."
     How would that be?  How would it be if you had existed, then you did not?  Sure, when people die, they cease to exist physically, but memories of them endure, sometimes for millennia.  They're gone, but they're not.  If someone had lived, however, and suddenly the world had no record that they had ever done so, what would be left?  There would be memories of course, but try to picture remembering a person who for all intents and purposes never even lived.  It would be as if this person had never been born.
     But of course this person had been born.  And of course this person had lived.  Only if memory, everyone's memory, had completely vanished would this person really be gone.  Yet if all memory had vanished, all time would, too.  And the universe really would be as meaningless as many people claim it is.  If there is no remembrance of or in time, we are nothing more than points of light, always shining, but pointing to nothing.
     Maybe that's why Genesis tells us that in the beginning, God made light and, consequently, day and night.  God knew that time without a foundation, time that just happens, is time that may as well never happened, as if everything in it had never existed.