Literature Reference: 安禅爱夜深。—— 《同皇甫侍御题惟一上人房》 Finding peace in Zen, loving the deep night. Source from 'Tong Huangfu Shiyu Ti Weiyi Shangren Fang'.
禅: Abdication and transmission.
深: Profound and enlightened, symbolizing depth of understanding and intelligent wisdom.
Meaning: Deep Zen signifies a tranquil mind and profound spiritual cultivation, symbolizing inner wisdom and peace.