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.

乐: Happiness, joy. The character "Ji" is auspicious and signifies a carefree, cheerful, and comfortable life, often used in names to convey a sense of ease and contentment.