Literature Reference: 培,养也;延,长也。——《说文解字》 Pei means to nurture; Yan means to extend. Source from 'Shuowen Jiezi'.
培: Nurture and foster.
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: Nurturing and extending, symbolizing growth and development.