Literature Reference: 禁门宫树月痕过，媚眼惟看宿鹭窠。——《赠内人》 张祜 The moon's trace passes the palace trees by the forbidden gate, her charming eyes only gaze at the egret's nest. Source from 'To the Palace Lady' by Zhang Hu.
宿: Celestial Mansions.
鹭: Egret waves, egret, and white egret, in names often symbolize freedom and immense talent.
Meaning: The egret resting at night symbolizes tranquility, peace, and elegance.