Literature Reference: 苍茫洞庭岸，与子维双舟。——《洞庭湖阻风赠张十一署》 On the vast shores of Dongting Lake, together we moor our twin boats. Source from 'Dongting Lake Blocked by Wind, Presented to Zhang Shishu'.
双: Two, a pair. Symbolizing abundance. It signifies double happiness.
舟: The Ark, a vessel.
Meaning: Twin boats symbolize unity, companionship, and moving forward together, signifying deep bonds and mutual progress.