The procedure to which Aston is referring here is electroconvulsive therapy (sometimes referred to colloquially as electroshock treatment) which involves medically inducing a seizure in patients through electric volts that are passed through the brain. The procedure was used to treat various mental illnesses, such as major depressive disorder and schizophrenia. The treatment negatively affected Aston physically and mentally, making it difficult for him to keep track of his thoughts and understand people. His experience serves as a critique of the way modern society casts out and punishes people who are vulnerable or different—because of mental illness, homelessness, immigrant status, or a host of other factors—rather than trying to understand and help them. Aston’s botched therapy is, in this sense, a betrayal, and the trauma of this period in his life seems to have made him more reserved and skeptical of opening up to others. His mention of “[laying] everything out, in order, in [his] room, all the things [he] knew were [his]” is reminiscent of the way Aston collects objects in his room in the present day. The fact that he began exhibiting this behavior after the procedure (and after he become cut off from others) implies that Aston learned to substitute human interaction and connection with the collecting of objects.