The Impression that I Get

I'm going through a spell where I wake up at some point in the wee hours, unable to sleep. I really don't like it when this happens, but I've been trying to deal with it by embracing the fact that I'm awake rather than fighting it too hard.

It sucks though, and I gotta say this morning's early wake up wasn't helped by having this song running through my head:

Have you ever been close to tragedy? Or been close to folks who have?
Have you ever felt the pain so powerful, so heavy you collapse?
I've never had to knock on wood, but I know someone who has.
Which makes me wonder if I could.
It makes me wonder if I've never had to knock on wood.
And I'm glad I haven't yet because I'm sure it isn't good,
That's the impression that I get.
Have you ever felt the odds stacked up so high, you need a strength most don't possess?
Or has it come down to do or die? You've got to rise above the rest.
I've never had to knock on wood, but I know someone who has.
It makes me wonder if I could.
It makes me wonder if I've never had to knock on wood.
And I'm glad I haven't yet, because I'm sure it isn't good.
That's the impression that I get.
I'm not a coward, I've just never been tested.
I'd like to think that if I was I would pass.
Look at the tested, and think there but for the grace go I.
Might be a coward, I'm afraid of what I might find out.
I've never had to knock on wood, but I know someone who has.
Which makes me wonder if I could.
It makes me wonder if I've never had to knock on wood.
And I'm glad I haven't yet because I'm sure it isn't good.
That's the impression that I get.
Never have, I'd better knock on wood.
'Cause I know someone who has.
Wonder if I could, it makes me wonder if I've never had to.
I'd better knock on wood 'cause I'm sure it isn't good.
And I'm glad I haven't yet, that's the impression that I get.

I've never really liked this song, or understood what it means, but the impression that I get is that it does somehow seem to resemble the state of my can't-get-back-to-sleep mind...