The business of Reiki is interesting because it is based on undetectable energy, so practitioners have to claim to have received it from a Reiki practitioner or trainer, or even Master. Based on their personal statement that it has happened, anyone assessing them can do nothing other than go along with it. If the paying customer says they've received energy (because that's what they just bought), the seller will obviously accept the money.
That form of self-assessment is the basis of Reiki qualifications. The way it works is this. There are three levels (which they disingenuously call degrees) of supposed Reiki training and the first is supposed to be about self-healing. You can get that by just attending a one-day session and paying a fee. You won't have to be assessed other than by being asked what you feel and as long as you give the expected answers, you're in. You're now qualified at the first level and that's a necessary precondition for getting to the second level, where you make money.
The second level is supposed to be about you being able to download energy so that you can then pass it on to someone else, friends, relatives, or customers, through a process called empowerment. Again, give the right words and pay the money, and you're in. That entitles you to set yourself up officially as a practitioner. In many places, to get business insurance you have to provide some kind of written certificate to show you've been trained and that arbitrarily means level two. Sometimes there are associations which sell the insurance, and you have to join them first.
So how does the Reiki pyramid selling business work? First you get yourself joined up which involves an outlay of around £740 - around £130 for the first level, £160 for the second level, and a massive £450 for the third level. The first two levels are normally each one-day courses, and the third one is generally a two-day event. All of the sessions typically involve self-treatment as well so there won't be any stressful learning involved.
Now you've paid your money and joined the pyramid, you can start transferring the financial risk to others by charging for treatment sessions. You can officially do that once you've done the second day session. Once you are up to level three, you can start charging people learning Reiki by running the courses yourself, pretending to be training others.
All you need to do to get your money back is to be able to maintain the delusional marketing activity, say the right things about downloading energy, and empowerments, ride on the wave of Woo publicity, and attract customers. Once you've recovered your outlay, you can begin to collect the profit, perhaps spending some of it on getting more non-qualifications which you can use to boost your marketing message. As long as you don't care about how things work in the real world, as long as you don't think about whether it is even credible that this energy exists, you can submerge yourself in Woo nonsense.
During the process you have to go along with the mumbo-jumbo but it's a small price to pay for inclusion in a very lucrative pyramid selling scheme.
The interesting question is how any Reiki trainer could ever tell whether the undetectable energy has been transferred anywhere, given that the customers could just be playing the game to get the piece of paper, to join the club. Someone claiming to receive the empowerment is just as untestable as someone claiming to provide it. Boths sides of a consensual fraud aim to gain by perpetuating the pyramid selling. If you try not to think about that, you might even delude yourself into thinking that it's not really fraud.
The real losers are those who pay for the treatment without joining the pyramid. The real con artists are those perpetuating the delusional business, by doing the courses and conning gullible customers into paying them.