Physical inspection.
Yi Chen was well aware of the monks' rationale, claiming it was for safety, but in reality, they intended to conduct a comprehensive physical inspection to see if the two were likely to be infected by the monastery virus and the possibility of accepting the iron chains.
Upon reaching the Monastery's main door, the lead monk pulled out two special metal eye covers, each with two ten-centimeter-long thorny spikes.
"Due to the Monastery's special requirements, foreign visitors need to wear 'eye covers' when entering and moving about the internal areas"
to ensure that you will not remember the internal route of the Monastery and see things you shouldn't.
Once the eye covers are on, we will lead you to the physical inspection room, and as long as the examination is completed and there are no issues, you will be guided to the public area to move freely.
Given your contributions, you might also apply to visit some more secretive areas later."