This deliberately archaic spelling had diddly-squat to do with stage magic, and everything to do with Crowley's hatred of his contemporary competitors. When you label something, you exclude information about it. This is because the thing becomes obscured by other information stored under the label for the thing. When you symbolize something, you impose the deep structure of the symbol system used on the way you pereive the thing symbolized. There is a japanese proverb which relates that to confusing the Moon finger pointing to the Moon.
People tend to believe that they understand something when they have a name for it.
This is called nominalization. It enables people to take very ill-defined concepts and continuing processes and talk about them as if they were concrete things. Nominalization is an important tool but we must realize when we are using it. I dont know if this helps, but to me it demostrates that definitions are important for communication, but a balance must be struck between defining something, and limiting something with the said definition. It is the same when Siddhartha has an aim, a goal.