organisation/initiations

The HoH:MC and TM:RE books give examples of initiation rites that might be used by each cult but these are not set in stone.
A mystagogue might know several rites to grant the same effect and while the choice of which rite to use is made by the Mystagogue, as a character defining change - particularly where an ordeal inflicts a flaw on the character - the details should be agreed with the player first.