Ladies and gentlemen, today we dicuss homunculi.
Now, legend has them created by mandrake or chicken eggs, in some spermatogenesis goofiness. However, the notion of personified elements as posited by Zosimos seems at least more feasible to my sensibilities. Still, it's just as silly, thinking about little men going "arrrrgh!" all of the time in some constant gory torment.
I've experienced homunculi in the same manner as nature spirits initially, faces that appear in just about everything while I'm in what folks call the "receptive state," or what most folks perceive as being "zoned out." Eventually, certain faces kept repeating, or had a particular series of advice voiced in those moments, and were a bit more accessable, more obviously drawn from some bit of absurdist creation on my part. That little bit of personalization took those faces out of the matter and shaped them into satellite beings in the mental sphere.
This comes almost as a form of depersonalization of particular traits, making a parapersona to observe, understand, and manage before reabsorbing those traits back into the home persona, of course to move in and out constantly. Much of this relates to dolls, toys, and stuffed animals as a child. In fact, most magic comes from things we used to do as kids put into some comprehensible way of observing and understanding reality in a constantly changing manner, opening up new possibilities. It's admitting to madness and using its trappings to find sanity and completion.
One method I use to understand homunculi is beginning to draw the vague pretenses of a face, and watching what happens from there, in a trance. It isn't always symmetric, it's rarely pretty, but the imperfection of manifestation in any reality is the point: these beings are a part of that massive, multidimensional matrix, and manifestation shows merely one small size of an infinitely-sided being, with that imperfection acting as an attempt to stretch or fold that shape into something understandable. That's the point of paradox: let it happen.
Once the face is finished, put it away, and do something that relates to its manifestation while still awake that day, and don't look at it. Let it do its thing until something says otherwise. It's like a sigil with a personality, relating in that human-to-human fashion, touching on the concept of progeny and creation of life.