Introduction to the stone archway: In the middle of the steps is a brick archway with the inscription "Sun of the Rivers and Mountains" written on it. "Historical Records Taishi Gong's Preface" says: "I moved to Longmen and farmed in the sun of rivers and mountains." This is its source. The couplets on both sides of the archway are: "The saints light the Taoism, and the history of the Han Dynasty has scriptures." Standing here, looking around. To the east, the surging Yellow River washes away the stagnant energy in the chest; to the west, the Liangshan Mountains are green, and the animals gather the aura of heaven and man; to the south, the Wei Great Wall winds up as a wall; to the north, the gurgling Zhixiu River serves as a belt, creating a beautiful river and mountains.