I always feel alive. If you mean when do you feel happiest, that I can answer. I only feel dead when I am dead tied.

Your thread did remind me of the song Iris by the Goo Goo Dolls...

And you can't fight the tears that ain't coming
Or the moment of truth in your lies
When everything seems like the movies
Yeah you bleed just to know your alive

and also a song by The Chameleons called Soul in Isolation...

In total isolation
Surrounded by fears
Too many clowns ,too many tears
Isolation
Surrounded by crowds
In another world,head in the clouds!
I'm alive in here, i scream!
But you still can't hear
I'm alive, turn on the light

and Pearl Jam ...Alive

You're still alive, she said
Oh, and do I deserve to be
Is that the question
And if so...if so...who answers...who answers...
I, oh, I'm still alive