Literature Reference: 靖，安也；延，长也。——《说文解字》 Jing means peace and stability; Yan means extension or prolongation. Source from 'Shuowen Jiezi'.
靖: Tranquility and peace, a symbol of gentleness and harmony, auspicious in its essence.
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: Peace and stability combined with longevity and continuity, symbolizing enduring peace and prosperity.