Introduction to Guanhu Pavilion: This is the hometown of Yun. The sky in Saihanba is high and the air is crisp, especially in autumn. The clear blue sky with white clouds is as beautiful as the blue sky and white clouds on the Qinghai-Tibet Plateau. Sometimes the clouds are very close to people, floating above their heads, with the sky low and light, as if they can be reached; sometimes they are very far away, hanging on the edge of the sky, and you can only look into the distance; sometimes the sky is covered with thin cloth, with thin threads. Wisps; sometimes there are blossoming masses in the sky. Some are as white as cotton, some as red as fire, some as thin as gauze, or some as thick as mountains, like peaks, like waves, in various shapes and forms, walking and stopping, making people relaxed and happy, completely forgetful of themselves.