Why?

When you fall asleep
Before the end of the day
You start to worry

Like when the taxi comes
To take you away
When you're in no hurry

Yet as our hair turns white
All the stars still shine
So bright, above
[ Lyrics from: http://www.lyricsfreak.com/s/super+furry+animals/its+not+the+end+of+the+world_10227023.html ]
At least
It's not the end of the world

Why?.

We could live it large
Because we're only old once
Let's make a difference.

Turn all the hate in the world
Into a mocking bird
Make it fly away

Yet as our hair turns gray
Everything is far
From A. O.K