Literature Reference: 万里三湘客到，有风有雨人行。—— 《杂曲歌辞 江南三台四首 二》 Travelers from afar arrive through wind and rain, as people journey on. Source from 'Miscellaneous Songs: Jiangnan Santai, Part 2'.
雨: The life-giving rain that nourishes all things.
行: Proficient in a certain matter, it generally signifies smooth progress in all affairs, with the character "Zhi" carrying auspicious connotations.
Meaning: To walk in the rain symbolizes perseverance and resilience.