What will happen if I can't come back?

What if I should fall between the cracks?
Wherever! It's a question of time

Will I go back and forth down on-line?
Watching my sand glass
I count to a thousand
A lifetime in my hand
I flip it over
I set the counter
[ Lyrics from: http://www.lyricsfreak.com/v/voivod/time+warp_20321821.html ]
And switch on the power
Transform my matter
Am I gone forever?
Am I tomorrow or yesterday?

Another second's just passed away
Am I the first? Could be the last
Upcoming present and future past
I spiral down the line

I'm getting closer
Over and under
I must be right on time
Closer, closer