The theory of one hallucination, me. I theorize that all hallucinations occur through interaction with a sensory suite.
In essence, though a lot of hallucinations are maleficent, to a healthy mind, harnassing the power of visualization and other phenomena present in hallucinations, is potentially beneficent. Why not complement thought with something visual? What's the potential of a visualization capacity?
An hallucination is often random, and users have no control; in an opposite sense, I hypothesize visualization and other phenomena can be controlled.
I theorize hallucigenic control to require a sensory illusion; something static and consistent that senses can manipulate. This isn't a hallucination, but rather a shape we know that we can cordinate with, such as imagining you're in a cube.
I'm now going to describe a 3D shape that I struggle to name. Imagine a shell of line-form that contains the human body; this shell can be many forms, so instead of a whole shell, I want you to imagine it micro-partially, such as by imagining just the part that's over your eyes. Now if you literally believe that you are contained in such a way, there is potential for balance and coordination using your sense of the imaginary shell. It's very hard to explain, so if there is any way you can advance your knowledge of this shape, do that. The shell I imagine is wild line-form, lot's of small lines contained by bigger lines, all projecting current.
I can perform many movements that coordinate with the imaginary shell; moving my eye up can be thought to travel along part of the shell, and halting movement is suppresed by further shell sense.
What I've described here is a sensory suite, infinite in nature(dies with the user if the universe is stable for that time). You can continue for the rest of your life with sense of an imaginary shell, it can even conflate with reality, given you can imagine an advanced enough shape.
I think all hallucinations can be understood through this shape, it seems to be the only one of it's kind. When we hallucinate, is this unguided interaction with a containing sensory illusion? I think so, I have imagined this shape for over a decade, and all of It's properties(which I have explored), have that potential(such as it's depths, it's swirling power, and more).