Dot vs. Line

I went to the Easter service at my church tonight. Is that allowed- going to celebrate Christ's resurrection on Saturday night, even though he was in the grave till Sunday morning? I think it is.
Anyway, the service was delightful and joyful, as always and as is fitting to the glorious event we were celebrating.
A main point I found most interesting was this:
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Above is a dot. That is your life. A mist. Not even a sidebar in the scope of history.

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This, on the other hand, is a line. Think of the line as eternity. How many points are contained in a line? Ask a math major, they will tell you there is no number- it is an infinite number. How many lifetimes are in eternity? The same.
Earlier, before the service tonight, Josh and I read this from a book by CS Lewis:

There are no ordinary people. You have never talked to a mere mortal. Nations, cultures, arts, civilizations--these are mortal, and their life is to ours as the life of a gnat. But it is immortals whom we joke with, work with, marry, snub, and exploit--immortal horrors or everlasting splendours.

"Nations, cultures, arts, civilizations" are the things we spend hours and hours debating, studying, and cultivating, but what are they? A dot. A dot on the line of eternity. A nothing. And what of the creatures we come across that do last eternally? We don't pay them nearly as much attention. We ignore the troubles of those we've never met and mistreat even those we love.
The Resurrection this weekend reminds us of the dot versus the line, the Now versus the Not Yet, Time versus Eternity. Jesus spoke of eternal life, then showed us life after death in his conquering death.
Live for the line.
Happy Easter!