(some freewriting: Nathan and the Correspondence)
The man who greets you at the door is wan but handsome, of respectable dress and a way of carrying himself that betrays an aristocratic upbringing. His eyebrows are intact, his long hair unsinged - only a few bandages on his fingers betray his true profession. This must be the doctor's... friend? Associate? Partner?
"Colleague, after a manner," he says, with a warm smile. "And you must be the pupil he mentioned. The one who wants to understand the Correspondence on a deeper level."
[...]
"A common mistake for those new to the Correspondence," he says, "is to conflate the sigils with what they represent.
"By way of analogy, take our own language." In normal ink, he writes the word "joyousness" upon the paper. "When we write a word - one that already exists, that is - we are not bringing it into being. Nor are we bringing its associated concept into being. Both existed before the writing, and both will continue existing, even if this particular inscription is destroyed." With two quick strokes, he strikes out his writing.
"So, if we're not bringing a word into existence when we write it, what are we doing?"
Invoking it, perhaps?
"Correct," he says. He inscribes a sigil: THE EAGER ANTICIPATION WITH WHICH ONE BEHOLDS AN OPEN HORIZON. It sputters to life, blackening the paper with little licks of flame. "Not everything about the Correspondence can be understood in relation to human language. After a certain point, the metaphor will hinder your comprehension, instead of helping it. But as a beginner, there are worse misunderstandings to have."