Sword and Mind as One in Chinese / Japanese...

剣聖 can be translated as “Sword Saint,” “God of the Sword,” or “Saint of the Sword.” This is an ancient Japanese title bestowed on a master with the greatest of skills in swordsmanship.

Keep in mind that this is an antiquated term. It will only be understood in the context of martial arts. The pronunciation “kensei” also applies to other words like “constitutional government” and power (these words have different kanji and are completely unrelated).

Notes: This is sometimes Romanized as “kensei,” “ken sei,” and incorrectly as “Kensai.”

Chinese Note: This title is pronounceable in Chinese but seldom, if ever, used in Chinese. Also, the first character is an alternate character form for a sword, currently only used in Japan.

气剑体一致 often gets translated as “Mind Sword Body,” or “Spirit, Sword, and Body as One.” But I think these translations don't tell you enough about what this is really saying.

In this context, 気, which is the modern Japanese version of 氣, means spiritual and unseen energy or “life energy.” In some cases, 気 can be translated as spirit, feeling, or nature. If defined as the mind, it's more about the invisible or intangible parts of one's mind (or soul).

剣 is the Japanese version of 劍 meaning sword.

体 is the modern Japanese version of 體 meaning body.

The Kanji 一 means one, and in this case, suggests “all in one.” The Kanji 到 means to send, deliver, or convey. But together, 一到 suggests all these things in agreement, union cooperation, or in concert.

Note: Arguments exist as to whether this should be romanized as Kikentaiitchi, Kikentaiicchi, or kikentaiichi. Technically, if you drop the last character, you get 気剣体一 and kikentaiichi (ki ken tai ichi), which is also a valid phrase.