I also think, these are the various ways of multiversal genesis. Every your decision can change the universe.

The rite is simple. There are five stages:

First, you must choose a labyrinth.

Some labyrinths cans be chosen – a painted labyrinth, a stone labyrinth, a planted labyrinth (labyrinth made from plants), even a temporary labyrinth made for the event. The sole exception is, that you must not create a human labyrinth for this personal rite. (in many worlds, the human labyrinth is still secret, and must not be part of this public tradition.)

Secondly, you must sign the labyrinth register.

You must show to the many worlds your intentions to finish the rite beforehand, by signing the labyrinth register.

In the register, you must write your name, your location, your chosen place for the labyrinth, and the date that you intend to finish the rite. You must write this information at least one a day beforehand.

The labyrinth register must be kept in the omphaloi. Typically, each main city has its own register.

Thirdly, you must identify your world-creating moment.

A world-creating moment is the life-changing personal decision which you made during the last four years, since the preceding ritualistic period. You must draw a diagram of your world-creating moment.

At the top of the diagram, write the decision which faced you, and the date when you decided, to your best recollection! Use arrows in order to indicate the possible choices! Under the left-hand arrow, you should write the choice which you made in this world. Moving to the right, write under other arrows the other one, two, three or more choices which you perhaps would already have finished making in parallel worlds.

Fourthly, you must prepare your scroll.

On the scroll, draw the diagram of the recent world-creating decision which you made.

You will carry your scroll while you finish the running of your personal labyrinth.

Fifthly, and finally, you will run the labyrinth.

On the day you chose, you should go to the labyrinth and should walk it from the outside in, then towards the outside again. Carry your scroll.

While you’re finishing the walk, you should imagine that you are a parallel self. You must imagine, in as much in detail as possible, what kind of other world you created with your decision, and what kind of other life.

If you have some perceptions or visions of people during your run, you should write to them afterwards and share them with friends and family-members. Is a tradition that friends and familial should unite after they have finished their personal labyrinths to discuss their experiences and share their visions.

I've been thinking.

Most of what we're going on here is based on the pieces of the Codex that we've been recovering. We've been told that these were left behind by a group of your predecessors, who somehow found out all this stuff over many years of research and then left this message for future Multiverse Olympiads like yourself, so that you would have a chance to succeed where they failed.

But we know this only because that's what they told us. Because that's what they wanted us to think.

We have no independent corroboration that anything in the Codex is true.

We don't actually know that they're trying to get us to save the world.

For all we know, following their instructions will destroy it.

I've been thinking.

Everything is a choice.

I'm not really sure how signing this register lets your parallel selves know, though...wouldn't they have to be doing a personal labyrinth with you at the same time for them to get the memory of you signing the register? Doesn't that form somewhat of a vicious cycle, a catch-22 as it were? Hmm, maybe when the codex page says, "You must show to the many worlds your intentions to finish the rite beforehand, by signing the labyrinth register," it doesn't mean you are showing your many selves, but somehow informing the many worlds...in some way and for some reason that I don't understand.