Literature Reference: Yi signifies steadfastness and resolute determination; Yan denotes extension and perpetuity. Source from 'Shuowen Jiezi'.
毅: Perseverance and tenacity. In a name, it often signifies steadfastness, which is beneficial for career advancement.
延: "To extend, to introduce, and to facilitate the attainment of grand achievements, this character is auspicious for garnering fame, fortune, and good luck."
Meaning: Perseverance and determination, with endeavors extending into perpetuity.