"Sanqiu" refers to the three months in autumn, namely September, October and November. During this period, the temperature gradually dropped, the weather gradually turned cold and the leaves gradually turned yellow, showing a bleak and desolate scene.
"Rhyme" refers to flowing rhyme, which refers to the sounds and smells of autumn, including the sound of wind blowing through leaves, the singing of birds, the buzzing of insects and so on. These sounds and smells are isomorphic, forming the unique charm of autumn.
"A dream" means that life is as short and illusory as a dream, and "floating life" means that life is short. Both of these words express the brevity and impermanence of life.