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.

之: "之乎者也," auxiliary particles, when used in personal names, often refer to someone with exceptional literary talent, profound knowledge, and deep cultural understanding. This character "之" is believed to aid in enhancing one's learning fortune.