Literature Reference: 阑风长雨秋纷纷，四海八荒同一云。——《秋雨叹三首》杜甫 Long winds and endless rains in autumn, the vast lands all under the same clouds. Source from 'Three Lamentations on Autumn Rain' by Du Fu.
长: Strengths, merits.
雨: The life-giving rain that nourishes all things.
Meaning: Long rain symbolizes continuous nourishment, implying silent and gentle nurturing of all things.