How then shall I live?

I think December is the month of the year when most people are in their most emotional and reflective mood.

I remember this scenario when I heard Steven Curtis Chapman's Last Day On Earth song...
One morning while I was driving to work, I heard the sound of a siren. And when I looked on the center rearview mirror, there was an approaching ambulance. Cars on both lanes were making way for the ambulance. As I was maneuvering my car to the left to create ample space for the approaching ambulance, I suddenly glanced at the billboard for the "now showing" movie "The Day The Earth Stood Still". The ambulance had passed by and as I was going back to my previous lane, thoughts were racing in my mind. What if I was the one in that ambulance?

Last Day on Earth
by Steven Curtis Chapman

I pull over to the side of the road and I watch the cars pass me by
The headlights and a black limousine tell me someone is saying goodbye
I bow my head and I whisper a prayer, "Father, comfort their broken hearts"
And as I drive away there's a thought that I
I cannot escape, No I, I cannot escape this thought
I can't get away

Oh, if this should be my last day on this earth
How then shall I live?
Oh, if this should be the last day that I have
Before I breathe the air of heaven
Let me live it with abandon to
The only thing that remains
After my last day, here on earth

If this should be my last day here on earth
If this should be my last day here on earth
If this should be my last, last day here on earth

And if tomorrow comes to find me
Looking in the face of Jesus
Will I hear Him say the words "well done"?

Oh, if this should be my last day on this earth
How then shall I live?
Oh, if this should be the last day that I have
Before I breathe the air of heaven
Let me live it with abandon to
The only One that remains
After my last day
Here on earth

If this should be my last day here on earth
If this should be my last, my last day here on earth

Cause this could be my last, this could be my last
This could be my last day

*Last Day on Earth is the 4th track in the album All Things New. You can listen to it for free at Steven's website. Here's the link for the said album.