C3721 Great Zhou Wen King

In the past, the Taiqian Emperor had decreed that all the Buddhas of Mount Numinous would be suppressed, and that they would not be able to leave at all.

Later on, the imperial court's attitude towards Buddhism eased up. Buddhism could walk out of Mount Numinous and develop its own power. That was also because the imperial edict left on its own, not because of Buddhism