Tink, it was something about my uncle's arm...again, I was fairly young and not really questioning, just took everything for granted then...
However, this was something like arthritis, perhaps related to a war wound, and had been intractable for the medicine of the day. The healing was quite a phenomenon in our family, because we are inherently grounded in common sense and skepticism. What I do remember, and did not mention in the response to Dan, is that after three or four years the problem began to return in my uncle's arm. If I recall correctly, it never did get as severe as before the healing, but still the healing was not fully permanent. However, he did enjoy those few years of complete remission.
This uncle was a very interesting person, btw, a WWI veteran where he was the chauffeur for General Pershing!
Anyway, that event in my own family did open my mind. I still carry a healthy skepticism as these things do tend to be fraudulent, but at the same time I have also seen and experienced many remarkable happenings since this event with my uncle.