The ancient poet, Li Bai, was a figure from 1,000 years ago on earth where Duan Ling Tian used to live. However, the Beyond Heaven Secret Zone had existed for a long time, possibly even millions of years ago. The Beyond Heaven Secret Zone last opened hundreds of thousands of years ago. It was impossible for the Li Bai on earth to have left this treasure vault here based on the timeline.
Zhang Yi who was baffled by Duan Ling Tian's words asked, "Duan Ling Tian, don't you know that apart from people from the five mundane realms, Great Overarching Golden Celestials can enter the Beyond Heaven Secret Zone as well? Moreover, they can enter whenever they please."