Literature Reference: 南山有枸，北山有楰。乐只君子，遐不黄耇。乐只君子，保艾尔后。——《诗经·小雅·南有嘉鱼之什·南山有台》 On the southern hills there is the medlar, on the northern hills there is the elm. Happy and virtuous prince, may you live long without aging. Happy and virtuous prince, may your descendants be protected and prosperous. Source from 'The Book of Songs, Xiao Ya, Southern Fish with Delicacies, Southern Hill with Terraces'.
北: Direction, in the morning facing the sun, the side to the left hand, opposite to "south".
楰:
Meaning: Bei Yu carries a profound meaning, symbolizing resilience like the elm tree, longevity, and enduring blessings.