Remember when I said it requires a collective of people with a strong belief to create something in reality? Runes are the byproduct of this, as they act as a concept that pours your imagination into a specific idea, being Runes, to manifest that into the world. Thus, Runes act as a way of imagination producing its effect in reality, but! I said a while ago how one person is extremely unlikely to alter the real world with imagination, so how does this work?