I am just going to break some comfortable bubbles instead.
"It is all in your head, you just don't know how big your head is".
a statement by Lon Milo, who aside from being almost obese, useless in real life, with no actual success aside from making his living off his re-hash of Crowley's texts and his own inflation is said to be an Adept. (haha hah)
An accomplished magician some people call him. What exactly is it he is meant to have accomplished? On several meetings with him he is not able to discuss hermeticism or any other type of magick that you actually DO in any depth. His underlying understanding of his idols system is lacking at best and with his nervous ticks and superiority complex added in I have doubts whether he has truly undergone even an individuation process and not just created an antithesis he now inhabits.
"It is all in your head, you just don't know how big your head is"
Popularised by Crowley in his plagiarism of Mathers' Goetia, somehow claiming that demonic (and also angelic, by analogy) entities were aspects of the psyche.
He thought at that point he was the bee's knee's and had found a holy grail that has somehow been lost. "What?" the ancients would say "please enlighten us about the nature of all being held within the mind". That would have made Crowley hard.
We have known, forever, that macrocosmic issues have their correlation in the microcosmos. Nothing new there then.
"You just don't know how big your head is"
Well, claiming that it is all in YOUR head makes it very big indeed. And we all know what is said about people with big heads. They are full of themselves. Ego. Claiming that everything exists inside your own head is quite frankly nothing short of hubris.
Oh, yes, they also mistake the chatter of local gods and godesses trying to give them further understanding of the great mystery as a revelation as they are unable to lay aside their ego. (Cough The- Cough Le - Cough Ma)
"You" is, even psychologically speaking only a tiny fragment of your selfhood. The identification with this is what creates the need for psychological synthesis.
The claim it is all in your head you just don't know how big your head is is probably the instantiation of one of the most dangerous lies that exist in the bullshit outer courts of the western systems.
Belief in this lie will assist you in
1 not getting anywhere except a cumbersome neuro linguistic programming you call magic
2 being one of those larvae who manage not to become butterflies since "everything in that butterfly exists within me already". Get it? God, I hope you do.
Why it is not in Your head:
The mind of the all and you are not the same Being. If you were, you would have attained to what very high levels of alchemy refer to and achieved a mode of understanding that you cannot even conceive of right now. Do you truly deeply consider yourself on par with the mythical Chris(t) or Buddha? Raised anyone from the dead recently? Managed to physically transmute base metals? Been able to fully take over someone elses mind or called upon an entity that people on the street saw and then fled from? No? Then it seems your mind and the mind of the all is not the same thing after all.
Conflating the big world and the smaller world is in its smallest sense, one of the aspects of performing the great work of alchemy. The regeneration of beings into the Adam Kadmon. That you can pretend to be a fish doesn't allow you to breathe under water. That you can, by certain psychological exercises psychologically experience Zen or the great mind of the all doesn't mean that one and the other is actually the same. It means you have managed to imagine it.
Having bought a black belt from the local shop means I will still break all your bones in about 4,7 seconds, not that you are a Master.
So instead of being pleased with oneself and jerking off on sigils to brainwash oneself and playing with the ideas in our heads from a Santa Clause Look alike its time for actually performing work.
Because, in the end, it doesn't matter that magick is not like it is in Harry Potter. Someone can still kill you from a distance, get your loved ones who don't even believe in magick possessed and have them declared clinically insane by western medicine and other fun stuff.
It's a shame that its just in your head. If it wasn't maybe you could get help from the outside or you'd have someone else to blame but yourself.