The Codex is structured deliberately. Three rules are public. They are the entry conditions: you are not an NPC, you play with intention, you treat other Real Players as allies. They are enough to begin. Seven more rules are reserved for members. They concern the practice — what to do, how to coordinate, how to maintain the discipline over a long arc when the system is constantly trying to put you back to sleep. The reason for the structure is not gatekeeping for its own sake. It is the difference between the conditions of entry and the work of inhabiting. The first three rules can be read by anyone in two minutes. The other seven take time to absorb, and they require a community of people doing the same work. They do not transmit well in isolation. If the public rules describe themselves to you — if you read them and recognise yourself in the description — the next step is straightforward. Becoming a member is not the purchase of secret information. It is the entry into a context where the practice can actually be lived.