Eternity As a Moment vs A Moment as Eternity

I've been enjoying Christopher Fry's writings lately, they lead to good thinking.
This quote is one example:
In tragedy every moment is eternity; in comedy, eternity is a moment. Christopher Fry

During my mental ruminations, I've come to the conclusion that tragedy is a short term event, much like an earthquake. Whereas, comedy is the dew which sparkles on the grass every morning when we greet the day. Eternity is able to transmute this fragile life into something solid and lasting, which is found in the level of spirit and gives power to the comedic outlook in our natures.
Tragedy, though intense and shocking, by it's very existance reminds us that we naturally cling to stability and comfort. We are not created to be convulsed in every moment, but, only sporadically. To cultivate the habit of laughing in the face of our calamaties, large and small, this is what keeps us buoyant and at the same time makes us tough enough to proceed in the face of risk and difficulties. The moment and eternity, at odds? Or strangely at one? You decide.