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The character 節 (jié) originally depicted a bamboo joint, composed of ⺮ (bamboo) and 即 (which suggests restraint or connection). In ancient Chinese philosophy, bamboo joints represented natural points of division and connection, embodying the concept of moderation and periodic restraint. Over time, this concrete meaning expanded metaphorically to include all types of joints, seasons, festivals, moral principles, and musical rhythm - all concepts involving regulated intervals and measured patterns. The character beautifully illustrates how physical observation of nature informed abstract philosophical concepts in Chinese thought. Arrived in Japan: The character 節 arrived in Japan during the 5th-6th centuries CE as part of the broader introduction of Chinese writing system (kanji) through Buddhist texts and cultural exchange. It was formally incorporated into the Japanese writing system during the Nara period (710-794 CE) and appears in early Japanese literary works like the Man'yōshū poetry collection.