Literature Reference: 番直同遥夜，严扃限几重。—— 《南宫夜直宿见李给事封题其所下制敕知奏直在东省因以诗寄》 In the long night of duty, the strict gates limit many layers. Source from 'A Poem Written While Staying Overnight at the Southern Palace on Duty'.
严: Strict and majestic, embodying a serious attitude towards life and the courage to pursue one's aspirations.
扃: Door latch and door knocker.
Meaning: The strict gates symbolize solemnity, rigor, and protection.