Actually, Zhang Zian had already guessed the identities of these people.
Beneath the seemingly peaceful appearance of the world, people with different hidden ideas, such as believers of mysticism and agnostics, lurked. Such people were particularly abundant in Western countries as well as in Eastern countries. They were relatively fewer in Eastern countries, possibly because Western countries were rich and had good social welfare, which allowed these people to have the leisure time to think about those random things.
They were just ordinary people in ordinary lives. They could be your elegant university professor or your honest neighbor. They denied science and religion in private, and they had an extraordinary curiosity about meditation, divination, constellations, ancient legends, mysteries, and other things. They often devoted themselves wholeheartedly to the study and forgot to eat and sleep. They needed to put some things that they had learned into practice.