Fog and rain return to dust, the sun, the moon and the stars return to you, I return to mountains, rivers, lakes and seas, and I return to your eyebrows and smiles. The main meaning of this sentence is that smoke falls from the sky like rain in Mao Mao and finally returns to dust. The stars and the moon belong to you, and I belong to mountains, rivers, lakes and seas, and also to you, with a gentle smile.
The main meaning of this sentence is that I can't say why I love you, but I know that you are the reason why I can't find someone I love.