Literature Reference: 雨里难逢客，闲吟不复眠。——《喜贾岛雨中访宿》 Rare guests in the rain, I chant leisurely without sleep. Source from 'Xi Jia Dao Yu Zhong Fang Su'.
雨: The life-giving rain that nourishes all things.
闲: Leisure, tranquility, and serenity. In a name, it often conveys a sense of seclusion and peaceful elegance.
Meaning: Rain signifies tranquility and peace, while leisure implies a serene and unhurried state of mind.