Source: Chang 'e, an ancient poem by Tang Dynasty poet Li Shangyin.
The whole poem is as follows:
The mica screen was dyed red by thick candles, and the Milky Way gradually tilted towards the morning star.
Chang 'e, I must regret eating the elixir, and now I am alone, in the blue sky, singing every night.
The explanation is as follows: the mica screen reveals the deep light and shadow of the candle, the milky way gradually falls, and the morning star disappears. Chang 'e must regret stealing the elixir, but now it's cold at night.
Chang 'e: Heng E, now called Chang 'e, is the mythical goddess of the moon, and is said to be the wife of Hou Yi, the leader of Dongyi in Xia Dynasty.
Mica screen: A screen made of mica. Mica is a kind of mineral, plate-shaped, and its crystal is transparent and shiny. In ancient times, it was often used to decorate windows, screens and other things. Deep: dim.
Long River: Galaxy. Morningstar: Morningstar. Or the morning star, which appears in the east in the morning.
Elixir: refers to the immortal elixir. According to "Huai Nan Zi Lan Mingxun", Hou Yi got the elixir of life from the Queen Mother of the West, and Heng E stole it and ran into the Moon Palace.
Blue sea and blue sky: refers to Chang 'e's boring life, only seeing blue sea and blue sky. Blue sea, describe the blue sky as blue as the sea. Night Heart: Chang 'e feels lonely every night.
The author thinks of the moon and the morning star from the Milky Way, the fairy in the moon from the moon, the loneliness after the Goddess Chang'e flying to the moon, and the situation of a person in a lonely room. He will naturally regret stealing medicine and going to the moon.