4 ideas
Maarten Klein is a retired Dutch emigrant living with his wife Vera on the New England coast. Over one winter his first-person narration records his decline: he confuses times of day, loses track of recent events, and slides into vivid memories of his Dutch past. By the end he is in institutional care, and his account has broken down into fragments that barely hold together as sentences.
The narration never announces the illness. It shows the illness through its own structure. Syntax, chronology and naming degrade in step with the mind producing them, so the reader first notices errors the narrator cannot see, then gradually loses the ability to reconstruct what is actually happening. The form becomes the data, and the reader shares the disorientation instead of observing it from outside.
It is felt as other people acting oddly, objects misplaced, and the day out of order. So the sufferer builds plausible explanations and routines to cover the gaps. These cover-ups make sense from within, which is why the decline stays hidden from the sufferer and also creates friction with those around him.
Recent memory dissolves first while distant memory persists and even intensifies. The mind therefore retreats into earlier layers of life, such as childhood, the homeland and wartime, and mistakes them for the present. Identity does not vanish all at once. It regresses toward its oldest foundations, and the people nearest in the present, including a spouse, can become strangers or be mistaken for figures from the past.