In the Void Is Virtue, and No Evil
The Book of Five Rings“In the Void Is Virtue, and No Evil” is the culminating formulation of the Void in Miyamoto Musashi’s strategy manual. It distinguishes genuine emptiness from confusion: the Void is approached through knowledge, sustained practice, and a spirit cleared of bewilderment, and it is presented as a condition in which wisdom, principle, and the Way remain real.
Meaning of the Void
The expression appears at the close of the Book of the Void, the fifth of the book’s five divisions: Ground, Water, Fire, Wind, and Void. Musashi defines the Void not as an obscure doctrine or a store of secret information, but as what lies beyond ordinary knowledge. Existing things make it possible to recognize what does not exist; the Void is thus approached through understanding rather than through mere inability to explain something.
That distinction guards the term against a common misreading. People may call what they do not understand the Void, Musashi says, but that is bewilderment, not insight. The same mistake can occur in strategy when a warrior treats the limits of his craft knowledge as a realization of emptiness. The maxim’s rejection of evil belongs to this positive account: the Void is not a refuge for ignorance or disorder, but a state in which confusion has been cleared away.
Practice and Clarity
Musashi describes realization as the result of sustained discipline. A warrior must study martial arts fully without straying from the Way of the warrior, and accumulate practice day by day and hour by hour. He also calls for the twofold spirit of heart and mind to be polished, and the twofold gaze of perception and sight to be sharpened. When the spirit is no longer clouded and bewilderment has cleared, the practitioner reaches the true Void.
This emphasis clarifies why the book cannot be mastered through reading alone. Musashi warns that memorizing or imitating its instructions does not bring a student to the Way; its principles must be absorbed inwardly and into the body. Even the timing of an attack must be trained until the warrior can act in an instant. The instruction to teach strategy to the body, and to absorb its virtue patiently in combat, makes practical knowledge part of the route to the clarity named by the maxim.
Virtue, Nature, and the Way
The concluding statement sets out a deliberate contrast: virtue, wisdom, principle, and the Way have existence, while spirit is nothingness. Nothingness here does not erase the realities that guide action. Rather, the passage places a cleared spirit alongside the principles and wisdom that can be known and enacted, distinguishing the practitioner’s unclouded condition from the confusion that mistakes ignorance for the Void.
This conclusion also gathers the manual’s account of strategy as a natural Way. Earlier, Musashi writes that the Way of strategy is the Way of nature: by recognizing the rhythm of a situation, the warrior can strike naturally. The final formulation gives that claim its inward counterpart. The fighter does not invent a hidden principle or substitute emptiness for skill; persistent study and a settled spirit make responsive, correct action possible.
Closing Position in the Book
The maxim’s force comes from its position at the end of the final book. Musashi has presented the Void as the culmination of a five-part structure, after treating the practical grounding of strategy, its adaptive spirit, combat, and the traditions of other schools. The closing lines return to the distinction between apparent correctness and the true Way, urging the reader to act broadly, correctly, and openly rather than mistake a doctrine or a gap in understanding for realization.
The manuscript dates this conclusion to the twelfth day of the fifth month in the second year of Shōhō, 1645, and addresses it to Terao Magonojo. The final maxim therefore serves both as a philosophical summation and as the end point of a practical teaching: emptiness is not achieved by abandoning knowledge, but approached through training until bewilderment no longer clouds the spirit.

