Literature Reference: 不及川凫长比翼，随波双泛复双归。—— 《病鹤篇》 Not as good as the river ducks flying wing to wing, floating together with the waves and returning together. Source from 'Bing He Pian'.
双: Two, a pair. Symbolizing abundance. It signifies double happiness.
归: The original meaning refers to returning, coming back, tending towards, belonging to, gathering, merging into, adhering to, and submitting to, among other connotations.
Meaning: Double return symbolizes harmony, reunion, and the spirit of moving forward together.