In the moment of fulfillment—in the moment of joy, of play, of love—it is not so much that we feel time speeding by, it is that we do not feel the passing of time. What love and play have in common is that they both lift us up out of ourselves. They redirect our gaze away from our own interiority toward something beyond us.
But then as we become conscious that this moment will inevitably pass, that the time of departure draws near, then our experience of time is such that it appears to accelerate. The more aware we are of the ending, the faster time appears to pass. Again, it is a matter of desire. Although we may still be in the presence of that which we desire, its temporary quality—the looming horizon of finitude—renders the object both present but also soon-to-be-absent. While what we desire remains present to us, its loss now begins to color the experience so that our desire is once more activated, not for the object itself but for its permanence.
L.M. Sacasas, The Convivial Society Vol. 1, No. 19, “Desire Bends Time”
What’s interesting about this is that desire — while it “bends” time as Sacasas states — is tied to our temporal existence. The moment leading up to our desire, the moment of fulfillment, the moment after (the “time of departure”) are all due to our living in time. But what about that which is outside of time, i.e.: God?
As many a theologian would say, God is the fulfillment of our all our desires. And it’s precisely because He exists outside of time, and our uniting with Him in Eternity is also outside of time, that He satisfies us in a way that nothing earthly ever can. Once we have achieved the beatific vision, then there is no more “before desire” or “after desire.” There is only the fulfillment, and we never experience the “time of departure.”
The bending of time that Sacasas correctly observes re: desire, is precisely an effect of what lies at the very heart of what it means to be human. St. Augustine (I think) called it the “God-shaped hole.” We will always feel this bending of time around our desires because we will always be missing the one desire that is outside of time, the one desire for which we were made.