That 'laying on of hands' thing only works, or seems to, with people who already believe that the power is there for others to bestow. It would perhaps bolster a state of mind already in place, but I doubt it would have an effect on someone who hasn't a clue about it.
Yet I have done work on "non-believers" as well as "non-knowers" and have had my share of successes with them, as have many, many other practitioners.
I understand the concept of requiring faith in order to effect a cure, but isn't that a part of every modality including modern Western medicine? A patient who thinks their doctor defecates 24-karat bricks is more likely to become well, and sooner, than one who mistrusts / loathes his GP.
There's an interesting phenomonen among the Koori here ... That wouldn't work on anyone who had no strong conviction of the mind power wielded by the elders who had withdrawn their connection to the tribal 'country'. That seems a term they apply to place and feeling of belonging, a kind of life force they are connected to. Sound familiar?
Yes it does, but is not a direct correlation to the healing arts that utilize chi. They're essentially performing a brainwashing trick. It's entirely due to the perception and acceptance of group-think - that's why it doesn't work on outsiders, because it relies upon a shared myth.
Acupuncture / acupressure are proven modalities with thousands of satisfied clients. Insurance companies reimburse for treatments, and insurance companies are no dummies - they wouldn't hand over the cash unless something was actually happening. Same with chiropractic, although there I admit you could always point to physical manipulation.
OK, let's do that. There is a practice in Chinese medicine known as Tui-na, somewhat of a parallel to Western massage but with a much different mindset and technique. At it's most basic it is physical manipulation, yet it employs all of the same energetic principles (chi) as acupuncture and acupressure.
Chinese herbs - their formulation and application depend entirely upon diagnostics rooted in chi.
Qigong - an exercise / meditation system designed to focus attention upon the generation, storage and healing application of chi.
Taijiquan, Hsing-I, Bagua - fighting arts that utilize both your own and your opponent's chi.
Aikido - ibid.
So many more healing and martial arts that utilize the concepts and applications of internal energy that have been practiced for hundreds of years. They wouldn't be used in life-or-death situations if they didn't work.