Blind Calculation, Pointing Out Six Doors at the Beginning

Jinling is prosperous and noisy. The butcher who sells meat raises and lowers his knife, carving patterns on the bones; the weaver who sells cloth has a sword that looks like a swimming dragon, sharp and complex. The clerk who delivers the letter is like a ghost and his whereabouts are unpredictable; the innkeeper welcomes guests from all directions and is well-mannered... There is also a blind fortune teller on the overpass. He holds a white flag in his hand and wears a green shirt. He opens his mouth slightly and reveals all the secrets of the world. Everyone laughed at him for cheating and talking nonsense. He just twirled his beard and watched the storm with a smile. Until one day, the situation in the world rose again, and the remnants of the previous dynasty and the masters of magic came back with a vengeance. Just when everyone was in despair, an old blind man twirled his beard and talked and laughed to ward off the enemy. It was only then that everyone suddenly discovered it. This blind fortune teller. It seems not simple...