The reason Daoist Qingling refused to let Yunzhongzi enter the meeting was that he was currently at a crucial stage in his search for Haotian.
One has to admit that Haotian was indeed a man of profound scheming. Back when Ancestor Hongjun sent Haotian and Yaochi away to undergo reincarnation, he certainly had not revealed any information to them beforehand.
This could be verified by Haotian's reaction at the time. Yet, despite Daoist Qingling's profound cultivation and masterful command of various laws at this point, it still took him several years to gradually piece together some clues.
Chapter 264