Literature Reference: The green plums ripen in the rain, while the mast leans by the wine flag. Source from 'The Poem of Reminiscing the Past at Penpu After Thirteen Years as a Clerk in Zhongling' by Du Mu.
雨: The life-giving rain that nourishes all things.
熟: Mature and adept, also referring to a person's maturity.
Meaning: Ripening in the rain symbolizes growth and harvest under the nurturing of nature.