>>96512304
It's a non-magical form of esoteric knowledge, closer to the area of Attentiveness than Caster Intuition, that allows its practitioner to control the consequences of their actions. Users act in a backwards direction from divination by choosing one event they know to be a possible random outcome and then estimating the actions that are necessary for them to set it in stone.

It is likely that it was based on a mystic notion of writing your own destiny, as it was derived from the teachings of Mithra who was known to have written his own life story to such heights of skill that he became the author of others. Charlie's religion remains notably compatible with its ancestor as she was able to misattribute them to herself without a problem.

Here is the missing link that connects Esu's "letter" tsifra to dreams. Both of them are the least developed form of the godhood that the Elder Gods were cultivating, numbers reflecting the edicts of an embryonic god, and dreams reflecting the demands of one. That's also the reason that the Old Throne creates such vast amounts of dreams, it fights against the desires of not just three gods, but the billions of them throughout the planet. It contradicts every soul on the planet, melting their Meaning away, resisting spiritual forces with as much force as the most fundamental of physical ones.