Literature Reference: 不见心相许，徒云脚漫勤。—— 《相和歌辞 读曲歌五首 三》 Though hearts are not pledged, words of love are spoken in vain. Source from 'Xianghe Geci Duqu Ge Wu Shou San'.
心: Heart and intention, often used in names to signify sincerity, is conducive to attracting noble assistance.
许: "Consent and approval. A character that signifies the ease of achieving great endeavors and is auspicious for future matrimony."
Meaning: A sincere promise or heartfelt approval, expressing deep affection and genuineness.