Parts One through Five treated the karaṇa from within — its biomechanics, its epigraphic record, its neuropsychology, its existential structure, and the authority, history, embodiment, and community that make any of that structure possible to reach. This sixth part turns the lens outward, asking an explicitly objective, clinically-adjacent question: what does a centuries-old discipline of trained sequential movement, sustained attention, and rhythmic repetition have to say to three conditions of attention and memory — attention-deficit/hyperactivity presentations, short-term and working-memory impairment, and dementia across its stages — considered not as metaphor but as candidate mechanism.