What do you mean once you see through the world of mortals, once you enter the world of mortals?

A trick to see through the world of mortals: see through the secular, no longer nostalgia. Once stepping into the world of mortals: stepping into the prosperous secular life in this world. The world of mortals comes from the western capital of Han Dynasty. It just refers to the bustling place, and later it was extended to the whole world. Young and full of energy, thinking about what the world should be like, this is the essence of things and the justice of heaven. So I was eager to try, and once I waved my sleeves and raised my knife. Made a contribution and was praised. Then, push your luck to talk to the world. However, it is inevitably crushed by the inertia of this huge volume moving forward, and the whole body is moved by this huge mechanism, so it feels helpless and tortured by the helplessness of its loved ones. It's worn out, worn out.