What does it mean to dream of stars at night?

It means sailing by boat at night, dreaming and watching the stars in the sky. According to the textual research of "Farewell to the Ancient", it is considered that this poem is a poem of boating at night and dreaming of the stars, which comes from Bai Juyi's "Farewell to the Ancient". This poem means sailing by boat at night and watching the stars in the sky, which aroused the poet's reverie and fantasy. The whole sentence means "dreaming on the boat and watching the stars shine", which expresses the poet's praise of natural beauty and his perception of life.