Literature Reference: 延年益寿，子孙千亿。—— 《诗经·小雅·南山有台》 Prolonging life and increasing longevity, with descendants numbering in the thousands. Source from 'The Book of Songs, Xiao Ya, Nanshan You Tai'.
延: "To extend, to introduce, and to facilitate the attainment of grand achievements, this character is auspicious for garnering fame, fortune, and good luck."
年: Time and age. The character "年" (Nián) symbolizes a wish for auspiciousness, health, and smooth prosperity year after year.
Meaning: Extending life symbolizes health, longevity, and enduring blessings.