Literature Reference: 首阳山下路，孤竹节长存。—— 《首阳行》 Along the road at the foot of Shouyang Mountain, the integrity of the solitary bamboo remains eternal. Source from 'Shouyang Xing'.
长: Strengths, merits.
存: Preservation and conservation.
Meaning: Eternal existence symbolizes enduring resilience and immortality of spirit.