Dai Ko Myo: The Master Symbol, Explained

Dai Ko Myo is the fourth of the traditional Usui symbols and the only one not taught at the second level. It is the master symbol, reserved for the master or teaching level of Reiki, and it is the symbol most closely tied to attunements, the ceremonies through which new students are initiated. Because it sits at the top of the traditional set, it carries a particular significance for practitioners on the master track. This article explains what the name is commonly taken to mean, when students receive it, how it is drawn, the role it plays in attunements and teaching, and the traditional and alternative forms you may encounter. As with the other symbols, the meaning attributed to it is a matter of tradition and belief rather than a measured effect.

The name and its translation

Dai Ko Myo is most often translated as “great shining light” or “great bright light,” and you will also see fuller renderings such as “treasure house of the great beaming light.” Some teaching sources connect it to a Zen expression for one’s own true nature or Buddha-nature, framing it less as a tool aimed outward and more as a symbol of inner illumination. Broken into parts, “Dai” is commonly glossed as great or big, with the remaining syllables associated with brightness and light.

As with every symbol in this set, these translations are interpretive and vary between teachers, and the romanized spelling shifts between sources as well. The consistent thread is the imagery of light and a sense of the highest or most encompassing symbol in the traditional system. That framing, of a symbol associated with illumination and with the master level itself, is what shapes how practitioners describe its place in the tradition.

When students receive it

Unlike the three second-level symbols, Dai Ko Myo is introduced at the master or master-teacher level, which is the third stage in the common three-level structure. Students typically encounter the power, mental and emotional, and distance symbols first, at the second level, and only receive the master symbol later, when they pursue master-level training. This sequencing is one reason it is set apart from the other three and described as the master symbol.

The reason it is reserved for this stage is bound up with what the master level represents in the tradition: the capacity to perform attunements and to teach. Because Dai Ko Myo is the symbol used in those attunement ceremonies, it is taught at the point where a student is preparing to take on that teaching role. As with all Reiki training, none of this is standardized or licensed, so the exact requirements, timing, and curriculum for reaching the master level vary from one school and teacher to another.

How the symbol is drawn

Dai Ko Myo is drawn as a multi-stroke figure, and like the other symbols its precise form varies by lineage. Practitioners describe it as a flowing arrangement of strokes that students learn at the master level alongside the responsibilities that level carries. Because it is taught later than the others, many practitioners come to it only after they are already comfortable drawing the second-level symbols, which can make the learning feel more natural by that stage.

There is an additional wrinkle with this symbol specifically: more than one distinct form circulates. The point about lineage variation that applies to all the symbols applies with extra force here, because there is a widely recognized alternative version in addition to the traditional one, which the next section addresses. As ever, there is no central authority certifying a single correct rendering, so the practical guidance is to learn the form your own teacher and lineage use.

Its role in attunements and teaching

The defining use of Dai Ko Myo is in attunements. An attunement is the ceremony through which a Reiki teacher initiates a new student, and teaching organizations describe the master symbol as central to that process. In the tradition, it is the symbol a master uses when conducting attunements, which is precisely why it is withheld until the master level: receiving it is connected to gaining the ability to initiate and teach others.

Beyond attunements, the symbol is associated with the master level as a whole and with the more spiritual or “highest” framing that level carries in the tradition. It is generally not described as a routine session symbol in the way the power symbol is; its significance is tied to teaching and initiation rather than everyday hands-on practice. As with the rest of the set, all of this describes the symbol’s traditional and ceremonial role. The attunement is an experiential ritual within the practice, not a measurable procedure, and any sense of significance a participant feels is a subjective experience rather than a demonstrated effect.

Traditional versus alternative forms

The most distinctive thing about Dai Ko Myo is that practitioners commonly speak of more than one version. There is the traditional Usui form, and there is a separate, quite different-looking version often referred to as the Tibetan Dai Ko Myo, which entered some Western lineages and is taught in certain branches alongside or instead of the traditional one. The two look different and are associated with different teaching streams within the broader Reiki world.

This split is a clear example of how Reiki tradition has branched over time. The traditional Usui form and the separate Tibetan version took hold in different teaching streams, and as each was handed down through its own lineages, both became established rather than one displacing the other. Neither is the single “official” symbol in any regulated sense; which one a practitioner uses reflects their lineage. The honest framing is the same as for the whole set: the differences are matters of tradition and transmission, and the significance of either form is experiential and belief-based rather than a measured force.

Brought together, Dai Ko Myo is the capstone of the traditional symbol set: the master-level symbol, the one tied to attunements and teaching, and the one that exists in more than one recognized form. Its imagery of light and its place at the top of the system give it a special weight for practitioners on the master path. And as with every symbol in this guide, that weight is a matter of custom, lineage, and personal meaning rather than a demonstrated effect of the symbol itself.

Frequently Asked Questions

Why is Dai Ko Myo reserved for the master level?
Its reservation is tied to function: it is the symbol traditionally used in attunements, the ceremonies through which masters initiate new students. Because the ability to perform attunements and to teach is what the master level represents, the symbol associated with that role is introduced at that stage rather than earlier. The custom reflects the structure of the tradition rather than any regulation, since Reiki training is not standardized or licensed.

Are there really two versions of Dai Ko Myo?
Yes. A traditional Usui form and a separate, quite different-looking version often called the Tibetan Dai Ko Myo both circulate, with different lineages teaching one, the other, or both. This is more variation than most of the other symbols show, and it reflects how Reiki branched as it spread. Neither version is the single official one in any regulated sense; which a practitioner uses depends on their lineage.

Is Dai Ko Myo used in regular sessions?
It is most associated with attunements and the master level rather than with everyday hands-on sessions, where the power symbol and the other second-level symbols are more typical. Some master-level practitioners may incorporate it into their personal practice, but its defining role is ceremonial and tied to teaching and initiation. Any use of it remains a matter of tradition rather than a technique with measured effects.

Sources

This article is for general informational purposes only and does not constitute medical, psychological, or professional advice. Reiki is a complementary relaxation practice; the existence of a measurable “energy” and any health benefits beyond relaxation are not established by scientific evidence. Reiki is not a substitute for professional medical care. If you have a health concern, consult a qualified healthcare provider.