(idiom) a cool breeze and a bright moon; refers to a peaceful and clear night, or a life of quiet solitude and leisure

literaly a bright moon and a cool breeze; refers to a peaceful night or living a quiet life free from worldly worries

Referring to the city of Yangzhou as possessing two-thirds of the world's moonlight; used to describe the unparalleled prosperity and beauty of a place, or more generally, wonderful scenery

the luminous pearl of the Marquis of Sui; a metaphor for an extremely valuable item or treasure