I appreciate this perspective a lot. I think one of the most important points here is that neurodivergence does not remove the need for discipline in magical work; it changes the way discipline has to be approached.
For someone with ADHD, the mistake is often trying to imitate a training model designed for a very different nervous system and then assuming failure means lack of will. In reality, the will has to be trained through structure, repetition, and realistic increments. Small sessions done consistently can build more power than occasional heroic attempts that collapse afterward.
The three skills you listed are fundamental: passive observation of thought, single-pointed focus, and deep silence/trance. I would also add that each one trains a different magical faculty. Observation teaches separation from the mental noise. Focus teaches direction of force. Silence opens the deeper field where real contact, reception, and transformation can occur.
The warning about intrusive thoughts during enchantment is also very important. In my view, this is why purification, centering, and mental stabilization before ritual are not optional. The operator must know what current they are actually feeding into the work.
I also agree with the “willpower muscle” idea. A timer, a fixed place, a fixed method, and gradual increase are simple, but very effective. For ADHD especially, consistency has to come before intensity. Five minutes every day with real attention is better than forcing an hour and developing aversion to the practice.
The same applies to reading. Mark the place, return, read a little, then push slightly beyond the point where the mind wants to escape. Over time, that becomes training in command over attention.
I think the deeper lesson is this: magical discipline should not be romanticized as suffering or self-punishment. It is the slow education of the mind, body, and subtle faculties until they can obey the work.