白昼不懂月亮的温柔黑夜不知太阳的耀眼
[bái zhòu bù dŏng yuè liàng de wēn róu hēi yè bù zhī tài yáng de yào yăn]
This poetic username reflects on the idea that certain things are only fully appreciated at their respective times - just as the gentleness of moonlight is lost during the day and the brilliance of the sun is unseen at night, some feelings or moments can only be truly experienced in particular situations.