At that time, Liang Sheng hadn't allowed Emperor Wu to conquer other countries because he was waiting for Zhou Yun's return. What Zhou Yun brought back this time would determine the measure of his plans in the future.
Originally, Liang Sheng was supposed to meet Zhou Yun on the agreed date in Emperor Wu's 20th year, but Zhou Yun appeared early. Liang Sheng discovered him right away at the Xigu Pass.
However, Liang Sheng didn't meet Zhou Yun immediately. He waited for a while, and after confirming that no one was following Zhou Yun, he finally appeared for their meeting.
By this time, Zhou Yun was nearing the end of his lifespan. Because of this, he appeared at the Xigu Pass earlier than planned. Zhou Yun was overjoyed to see Liang Sheng, as he brought back far more items than before.