I asked Gemini this, and it caught that it was fiction:
This sounds like a fascinating ritual from a fictional world! Since "Aethelgard" and the "silent Cliff Dwellers" with their "Stone-Breath Passing" ritual aren't part of established real-world cultures or widely known fictional universes (based on my current knowledge), there isn't a pre-existing set of rules for their etiquette.
However, we can imagine what the unspoken etiquette of such a ritual might entail, drawing from the evocative description:
This sounds like a fascinating ritual from a fictional world! Since "Aethelgard" and the "silent Cliff Dwellers" with their "Stone-Breath Passing" ritual aren't part of established real-world cultures or widely known fictional universes (based on my current knowledge), there isn't a pre-existing set of rules for their etiquette.
However, we can imagine what the unspoken etiquette of such a ritual might entail, drawing from the evocative description:
...