Board Thread:Warhammer 40k General Discussion/@comment-25618639-20150220210346/@comment-28917471-20150223211424

Of course! A regular human will be mosty unlikely to banish a daemon from his body, while a psyker has a connection to the warp, and can damn himself by creating a gate-way for the daemons to pour to the realspace.

Those who have succeeded at banishing the daemon from their bodies are known to be immune to the daemonic possession, and can travel the warp on their own.

This is why I ask this question...