I know many people with positive experience with Reiki, but also lots of them with negative experiences( like I am sick since Reiki ) . So I guess it is individual .
It is different how people react to energy, so one could try just a little of energy at first, and then build up gradually if everything is fine .
One issue is that some reiki masters can also transmit some lower vibrating energies to the clients, because they are not pure enough. So it may be important which technique you choose, and which master or practitioner !
Very famous Russian healer SN Lazarev in his books ( karmic medicine) is quite critical about Reiki (similar with many other healing approaches) as he states that developing more love generally and especially more love towards God is most important for healing. Being to critical about others, being to ambitious,to possesive or being a perfectionist may cause diseases which will not heal if one does not change his personality in a positive way. I do not want to scare anybody, but he also states that some Reiki healers cure themselves, but that they have actually only transfered their disease to their children. What I want to say is that there may be more to different healing systems that meets the eye and that things get more complex if one can see the whole picture ( SN Lazarev seems to have intense clairvision) .
Also Master Chuny Lin states that a good healer must have love and compassion, so this is in line with what Lazarev says.
