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心技体 is the Japanese title “shin gi tai” or “shingitai.”
This can refer to the three elements of Sumo wrestlers or martial artists, “heart-technique-physique.”
Here is what each character represents:
心 (shin) mind, heart, and spirit.
技 (gi) skill, knowledge, and experience.
体 (tai) body and physical effort.
心技体 have the same meanings in Chinese, though this title is used much more often in Japanese.