This song will be sung at the end of the world

So I just got out of my first live performance of Mozart's Requiem. It's difficult to choose a highlight from a piece like this, but the Dies Irae expresses the truest, most earnest emotion that has ever been heard in musical form. Don't know what I'm talking about? Well, the Big Lebowski is listening to it when he summons the Dude to tell him that Bunny's been kidnapped, but try to drive that picture out of your head. Listen to it once and read the words below:

Dies irae, dies illa
(Day of wrath, that day)
Solvet saeclum in favilla,
(Will dissolve the earth in ashes)
Teste David cum Sibylla.
(As David and the Sibyl bear witness.)

Quantus tremor est futurus
(What dread there will be)
Quando judex est venturus
(When the Judge shall come)
Cuncta stricte discussurus.
(To judge all things strictly.)

See the entire lyrics here