Go out for a walk with crutches, rest anytime and anywhere, and always look up at the distance. Clouds naturally emerge from the mountains, and tired birds know to fly back to their nests; The sun is dim, the sun is about to set, and the hand caresses the solitary pine.
The origin of Baiyun Cave:
Tao Yuanming, a writer in the Jin and Song Dynasties, wrote a lyric poem "Going to Come" to help the elderly rest and look into the distance when standing upright. Clouds come out of holes unintentionally, and birds don't know when to fly. The scenery is coming, lonely and lingering.