In which season, there will be such bright light at the foot of my bed, and will there be frost? Li Bai wrote this poem?

analyse

The so-called "bright line at the foot of my bed" can be inferred because the window was open, so the weather was not very cold at that time. In ancient China, the windows were all pasted on the windowsill with thin paper, which had poor light transmission. If it is not open, the scenery of the "bright moon" will be much worse.

The so-called "doubt whether it is frosty" is much better than "the moonlight is like frost" (this is a common metaphor). This is because "the moonlight is like frost" is only a description of the moonlight imagination, while "I wonder if it will frost" implies the poet's calculation of the time to leave home: "Ah, it is almost the first frost solar term", and it is precisely because the poet is calculating the time to leave home that he will miss home.

The artistic background in the poem is obviously the full moon night between the cold dew and the first frost solar terms.

The so-called "full moon night between the cold dew and the first frost solar terms", if there was no leap moon in that year, it should be around September 15 of the lunar calendar; If there was a leap month in that year, it should be around August 15th of the lunar calendar (including August 15th).