What does it mean to fly into the Guanghan Palace and smell the blue sky?

"The sky flies into the Guanghan Palace, and every piece of incense attracts the sky" is an expression of ancient literati, which can arouse people's imagination of the beautiful, mysterious and extraordinary realm. "Tianpa" refers to flowers or petals falling from the sky, symbolizing purity, beauty and nobility. "Flying into the Guanghan Palace" means that these petals slowly fall from a height to the Moon Palace, which is the legendary Guanghan Palace where Chang 'e is located. It can be understood as an extraordinary realm or fairyland, full of mystery and beauty.