The information the authors want to convey is organized logically. It reads like something I might have written. It is strange to think that someone like me might write a chapter in a book on brain functionality. Do I sound like a textbook when I talk? Is that what Dr. Fornum means by “stilted language”? I always imagined performers in gaudy costumes on stilts dancing above the crowd when she said that. It did not seem reasonable; I am not tall and gaudy. If she meant I sounded like a textbook, she could have said so.

By now I know that PTSD is “Post-Traumatic Stress Disorder” and that it produces strange alterations in memory function. It is a matter of complex control and feedback mechanisms, inhibition and disinhibition of signal transmission.

It occurs to me that I am now post-traumatic myself, that being attacked by someone who wants to kill me is what they mean by trauma, though I do not feel very stressed or excited. Maybe normal people do not sit down to read a textbook a few hours after nearly being killed, but I find it comforting. The facts are still there, still arranged in logical order, set down by someone who took care to make them clear. Just as my parents told me the stars shone on, undiminished and undamaged by anything that happened to us on this planet. I like it that order exists somewhere even if it shatters near me.

What would a normal person feel? I remember a science experiment from middle school, when we planted seeds in pots set at angles. The plants grew upward to the light, no matter which way their stems had to turn. I remember wondering if someone had planted me in a sideways pot, but my teacher said it wasn’t the same thing at all.

It still feels the same. I am sideways to the world, feeling happy when other people think I should feel devastated. My brain is trying to grow toward the light, but it can’t straighten back up when its pot is tipped.

If I understand the textbook, I remember things like what percentage of cars in the parking lot are blue because I pay attention to color and number more than most people. They don’t notice, so they don’t care. I wonder what they do notice when they look at a parking lot. What else is there to see besides the rows of vehicles, so many blue and so many tan and so many red? What am I missing, as they miss seeing the beautiful numeric relationships?

I remember color and number and pattern and ascending and descending series: that is what came most easily through the filter my sensory processing put between me and the world. These then became the parameters of my brain’s growth, so that I saw everything — from the manufacturing processes for pharmaceuticals to the moves of an opposing fencer — in the same way, as expressions of one kind of reality.

I glance around my apartment and think of my own reactions, my need for regularity, my fascination with repeating phenomena, with series and patterns. Everyone needs some regularity; everyone enjoys series and patterns to some degree. I have known that for years, but now I understand it better. We autistics are on one end of an arc of human behavior and preference, but we are connected. My feeling for Marjory is a normal feeling, not a weird feeling. Maybe I am more aware of the different colors in her hair or her eyes than someone else would be, but the desire to be close to her is a normal desire.

It is almost time for bed. When I step in the shower, I look at my perfectly ordinary body — normal skin, normal hair, normal fingernails and toenails, normal genitals. Surely there are other people who prefer unscented soap, who like the same water temperature, the same texture of washcloth.

I finish the shower, brush my teeth, and rinse out the basin. My face in the mirror looks like my face — it is the face I know best. The light rushes into the pupil of my eye, carrying with it the information that is within range of my vision, carrying with it the world, but what I see when I look at where the light goes in is blackness, deep and velvety. Light goes in and darkness looks back at me. The image is in my eye and in my brain, as well as in the mirror.

I turn off the light in the bathroom and go to bed, turning off the light beside the bed after I am sitting down. The afterimage of light burns in the darkness. I close my eyes and see the opposites balanced in space, floating across from each other. First the words, and then the images replacing the words.

Light is the opposite of dark. Heavy is the opposite of light. Memory is the opposite of forgetting. Attending is the opposite of absence. They are not quite the same: the word for the kind of light that is opposite of heavy seems lighter than the shiny balloon that comes as an image. Light gleams on the shiny sphere as it rises, recedes, vanishes…

I asked my mother once how I could have light in my dreams when my eyes were closed in sleep. Why were dreams not all dark, I asked. She did not know. The book told me a lot about visual processing in the brain, but it did not tell me that.

I wonder why. Surely someone else has asked why dreams can be full of light even in the dark. The brain generates images, yes, but where does it come from, the light in them? In deep blindness people no longer see light — or it is not thought they do, and the brain scans indicate different patterns. So is the light in dreams a memory of light or something else?

I remember someone saying, of another child, “He likes baseball so much that if you opened his head there’d be a ball field inside…” That was before I knew that much of what people said did not mean what the words meant. I wondered what would be inside my head if someone opened it. I asked my mother and she said, “Your brain, dear,” and showed me a picture of a gray wrinkled thing. I cried because I knew I did not like it enough for it to fill my head. I was sure no one else had something that ugly inside their head. They would have baseball fields or ice cream or picnics.

I know now that everybody does have a gray wrinkled brain inside their head, not ball fields or swimming pools or the people they love. Whatever is in the mind does not show in the brain. But at the time it seemed proof that I was made wrong.

What I have in my head is light and dark and gravity and space and swords and groceries and colors and numbers and people and patterns so beautiful I get shivers all over. I still do not know why I have those patterns and not others.

The book answers questions other people have thought of. I have thought of questions they have not answered. I always thought my questions were wrong questions because no one else asked them. Maybe no one thought of them. Maybe darkness got there first. Maybe I am the first light touching a gulf of ignorance.

Maybe my questions matter.

Light. Morning light. I remember strange dreams, but not what they were about, only that they were strange. It is a bright, crisp day; when I touch the window glass it feels cold.

In the cooler air, I feel wide-awake, almost bouncy. The cereal flakes in the bowl have a crisp, ruffled texture; I feel them in my mouth, crunchy and then smooth.

When I come outside, the bright sun glints off pebbles in the parking lot pavement. It is a day for bright, brisk music. Possibilities surge through my mind; I settle on Bizet. I touch my car gingerly, noticing that even though Don is in jail my body is remembering that it might be dangerous. Nothing happens. The four new tires still smell new. The car starts. On the way to work, the music plays in my head, bright as the sunlight. I think of going out to the country to look at stars tonight; I should be able to see the space stations, too. Then I remember that it is Wednesday and I will go to fencing. I have not forgotten that in a long time. Did I mark the calendar this morning? I am not sure.