Literature Reference: 人愁在长信，萤出向昭阳。——《相和歌辞 倢伃怨》 Sorrow lingers in Changxin, while fireflies drift toward Zhaoyang. Source from 'Xianghege Ci: Jieyu Yuan'.
长: Strengths, merits.
信: Integrity, embodying the virtues of honesty and keeping one's word, is often reflected in names, suggesting a person's commitment to trustworthiness and reliability, which in turn fosters favorable interpersonal relationships and fortune.
Meaning: Changxin signifies enduring friendship and steadfast belief, symbolizing loyalty and permanence.