What do you mean, the sky is blue and I'm waiting for you.

Azure (a kind of glaze color) is waiting for the smoke and rain to burn out, and I am waiting for you. "The sky is blue, I am waiting for you" comes from the song "Blue and White Porcelain", written by Fang Gang and composed and sung by Jay Chou. This sentence is related to the making of blue and white porcelain. Azure in blue and white porcelain is a very precious color, which needs to be fired in a certain misty and rainy weather. This kind of color can only be fired after the rain and the clear sky, so it is regarded as a rare color. It represents a kind of persistence and expectation for love, just like Azure is waiting for misty rain, waiting for the appearance of her sweetheart, hoping to spend a good time with her lover and looking forward to a complete and beautiful future.