I have been requested by several people to expand upon this metaphor, and explain what happens to heretics and how it works with the whole Sani Sabik religion.
Simple.
Heretics are treated much the same as heathens, except the revolving door has spikes on it, and there is a fearsome quzjyx that chases the heretic for eternity.
As for Sani Sabik, well, that’s simple. By rigid adherence to rituals, and so being Righteous, they bypass the arrivals lounge entirely, and enter directly to a private, more exclusive Paradise.
Similar in a way to how common people and capsuleers travel in separate classes on the Interbus passenger services.