The word Jitsu (実) means "reality" or "truth." In martial arts, Jitsu refers to the practical application of techniques and principles in real-life situations. For instance, Jujutsu (柔術) translates to "the art of softness," emphasizing grappling and submission techniques for self-defense. Ninjutsu (忍術) means "the art of stealth," focusing on covert tactics and espionage.
When combined, Do and Jitsu form the concept of Dojitsu (道実), which represents the unity of the way (Do) and reality (Jitsu). It highlights the inseparable connection between theory and practice, where martial arts are not just about physical techniques but also about personal development and the pursuit of truth.