Literature Reference: 调丝竞短歌，拂枕怜长夜。——《相和歌辞 子夜四时歌六首 冬歌二首 一》 郭元振 Strings are tuned for short songs, pillows are smoothed for the long night. Source from 'Xianghe Geci Ziyue Sishengge Liushou Dongge Ershou Yi' by Guo Yuanzhen.
长: Strengths, merits.
夜: The original meaning: The time from dusk till dawn, also used to depict mystery.
Meaning: The long night symbolizes depth, tranquility, and contemplation, signifying growth and reflection over time.