the fan’s vibration combined with some certain set of notes I was practicing on the violin, and the two vibrations set up a resonance that made something happen in my head. It is impossible really to explain it, but it was a certain quality of this resonance that produced it.’
This is a rather strange explanation for the onset of depression. What is Wallace doing here? A lot of people sag they relate to this description of depression, but I don't personally. I admire Wallace for trying, though.