Going through a phase I

Going through a phase
I must be.

I keep getting a real sense that this is it.
Not a rehearsal.
I won't get a second chance.
I won't pass by this moment again - it's gone forever, never to be repeated.
It's like a moment of flashing intensity - like waking up.
Trouble is I can't sustain it. I keep slipping back into sleep.
The dream....
The nightmare......