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.

People say, "I have heart disease," not "I am heart disease." Somehow the presumption of a person's individuality is not compromised by those diagnostic labels. All the labels tell us is that the person has a specific challenge with which he or she struggles in a highly diverse life. But call someone "a schizophrenic" or "a borderline" and the shorthand has a way of closing the chapter on the person. It reduces a multifaceted human being to a diagnosis and lulls us into a false sense that those words tell us who the person is, rather than only telling us how the person suffers.

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.

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.

Some struggles are so solitary that they drown in words.

In the psychological literature, depression is often seen as a defense against sadness. But I'll take sadness any day. There is no contest. Sadness carries identification. You know where it's been and you know where it's headed. Depression carries no papers. It enters your country unannounced and uninvited. Its origins are unknown, but its destination always dead-ends in you.