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The character 思 (think/consider) evolved from ancient pictographs representing both the brain/mind and the heart. In oracle bone script, it depicted a skull or brain (囟) over a heart (心), symbolizing that thought originates from both mind and heart. By the bronze script era, the top component transformed into 田 (field), possibly representing the 'field of thought' or through phonetic borrowing. The character embodies the Chinese philosophical concept that thinking involves both intellectual and emotional faculties, with the heart considered the seat of thought in ancient times. Arrived in Japan: The character 思 arrived in Japan around the 5th-6th centuries CE during the period when Chinese writing was systematically introduced to Japan through Buddhist texts, Confucian classics, and official documents. It became integrated into the Japanese writing system as a kanji, used in both native Japanese readings (omou) and Chinese-derived readings (shi).