Parkinson's is a degenerative disease: It starts with no symptoms, then mild ones, and gets worse over time. Medications exist to slow the progress, and some interventions can help patients retain or regain abilities for a bit more time. It is not unusual for them to have variation in "form" from day to day: Yesterday they walked alone, today they need some assitistance, tomorrow nothing is possible without a wheelchair, but the day after that, they are back to unassisted walking. But overall, the condition will continue to get worse, and they will eventually be confined to a wheelchair, and later to bed.
(I had such a patient until recently: For a while, he was confined to the bed, for he couldn't keep sitting for any length of time, but then he got better and we would mobilize him into the wheelchair for meals, sometimes longer.
And then one day, he felt so strong that he actually lept out of his wheelchair.
Bad idea: He fell on his head. Following a hospital stay, he was back to the bed, and died just a couple of weeks later.)
Now, a Parkinson patient who is truly confined to a wheel chair (i.e. is no longer, not even occasionally, able to stand up and move without it) typically is also badly afflicted with some of their mental capacities, particularly speech. This, I presume, would be detrimental to their ability to have a conversation with their deity, or to do the communications necessary to convey repentance. So how would that Parkinson patient you observed have earned the "right" to be "healed"?
