I'm getting less good at faking it. People in my family are noticing and asking what's wrong. My friends give me invitations to talk, to cry. I love them for their caring, but I want to run from it. I have lost their language, their facility with words that convey feelings. I am in new territory and feel like a foreigner in theirs.

Depression is such a cruel punishment. There are no fevers, no rashes, no blood tests to send people scurrying in concern. Just the slow erosion of the self, as insidious as any cancer. And, like cancer, it is essentially a solitary experience. A room in hell with only your name on the door.

In these flashes of insight, I understand for a moment that one of the great dividends of darkness is an increased sensitivity to the light.

I would never kill myself intentionally. I couldn't do that to my family, my friends ... But to have fate step in and give me a shove, that's a different matter. Then I have the exit, without the guilt. I am ashamed of myself for thinking like this. But more than anything, I am frightened that it makes me feel so much better to think about it. Sometimes it eases the terror, the sense that I am condemned eternally to this hell.

If only I had known a year ago what I'd be facing now. Until last year I lived with the innocent arrogance that my life was a simple product of effort, will, and design. But now I am a house of cards, held precariously by the fragile conspiracy of wind, weight, and angle. Perhaps it is best we cannot see into our futures.

It's enough just to speak when spoken to, to give some minimal reaction to a stimulus. But to actually be the stimulus doesn't even occur to me.

The bottom line is that my life has already almost slipped away from me. I have two choices: I can end it or I can fight like hell to save it.