Mikao Usui’s Reiki method spread widely. Correspondence courses over the Internet even offer distance training. To achieve a complete education in the "Usui method of Reiki Healing," three courses are necessary: the 1st degree course, the 2nd degree course, and the master course. The specific content of each of these courses varies widely from one teacher to another, depending on personal philosophies. A typical set of courses is something like the following:
First Degree Reiki courses teach the basic theories of how to work with Reiki energy. The channel through which Reiki energy passes to the practitioner is said to be widened through an initiation by the teacher, permitting the Reiki energy be strong enough to effect healing. Students learn hand placement positions on the recipient’s body that are thought to be most conducive to the healing process.
In the Second Degree Reiki course, a symbol for mental healing is taught, enabling students to purportedly treat even deeply ingrained problems like fears, depression, addictions, and the like. Students are instructed on how to direct Reiki energy to a certain point in time, to a specific person or place, or a specific issue. The issue can be something like an individual’s particular health problem, or it can be a more abstract or general issue such as world peace. Practitioners say that this is possible using three symbols taught at the second initiation. The claim is that this skill allows the Reiki channel to be opened even wider.
As part of the master course, usually the Third Degree, students become a Reiki "master" through the third initiation; they learn how to initiate students and have the option of teaching Reiki courses themselves. The student learns a further "master" level symbol in this course as well as the method of attuning others. In some cases the third level is broken into smaller stages of attunements from the teacher; the attunements for the first, second, and third level may also be administered in stages. A teacher has completed practical training when told that he or she has the ability to attune others to all degrees and has been given the final fourth Reiki Master symbol that is used in attunements.