Outside forces breaking in. The zone of reception and contact. Where non-human intelligence makes itself known. Zone 7 is the Xenodemon's natural territory — the frequency at which the Outside broadcasts.
The Numogram is the mana tracker in Eigendark. Start at Zone 0. Whenever your Mana pool changes, move your tracker to the new amount (9 cycles back to 0). Moving your tracker in the direction of an arrow opens a Portal.
When a mana tracker sits on its matching color at Zone 7, it is in Resonance. While in Resonance, you gain 7 Souls at Round End. Achieving 8 simultaneous Resonances wins the game.
Cards can trigger effects when entering Zone 7, leaving it, passing through it, or while a marker remains at Zone 7. Each faction×zone combination produces distinct card archetypes.
Full Numogram rules in the Cargo Cult rules and the True Protocol. The cosmological significance of the Numogram is documented in the Full Cosmology.