What does the blue sea in Chang 'e's ancient poems mean?

The meaning of "blue ocean": the legendary name of the sea. The blue ocean. "Ten Kingdoms": "Fusang is on the east coast of the East China Sea, with a straight shore, and landed in the land of Wan Li, with a blue sea in the east. The sea is wide, narrow and sweaty, and the water is not salty or bitter. It is blue. "

Chang'e

Tang Dynasty: Li Shangyin

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.

translate

Through the screen decorated with mica, the shadow of the candle gradually faded. The Milky Way is also quietly disappearing, and the morning star sinks into the dawn.

Chang 'e in the Moon Palace may regret stealing Houyi's elixir of life. Now only the blue sky and blue sea accompany her with a lonely heart every night.