Through comparative history studies, this paper seeks to reveal the logics beneath the
growth of suppressed religions, holding that suppression can lead to some unintended consequences.
Repression are helpful because it not only can induce suppressed religions to create adaptive
doctrines, but also can reduce the risk of the uncertainty in religious goods and mitigate free
riding through creating a social barrier that filters out halfhearted members. In addition,
suppression drives religious groups to adopt institutional innovations to sustain the networks, to
keep the followers’ morale and to avoid detection. The sustained networks make massive recruitment
possible. All of these unwanted consequences of religious suppression, which fall out of the
prediction of religious regulators, contribute to the vitality of suppressed religion.