We already know that the world of MH is full of mystical energies. Be it the fantastical creatures roaming the earth and using glamour to charm humans or chthonic entities erecting eternal prisons the setting is basically founded on the occult. However in order to avoid deus ex machinas and poor writing one should make something known as "magic system" or even better - a "good magic system". What are the developers's intentions with the occult in the story? What is the basis for the magical abilities in the world? Were "gods" the source of magic or simply the channelers of those powers? Are their artifacts strictly magical or were they using an advanced combination of technology and magic?
I've got so many questions that my post looks like an "ancient aliens" intro already. However I've got a fair share of theories as well. First off - the materialization ability of the protagonist seems to be using the Labirynth itself as a catalyst for the condensation of energy. If that's the case then it would stand to reason that one might learn how to materialize matter even without the help of the Labirynth. What I mean is : protagonist provides will and imagination and the labirynth provides the energy condensation into the shape and form willed by the protagonist. WHICH ALSO MEANS that with a well developed imagination he could create a lot of different effects like chocolate-flavoured grapes or flammable gold. A protagonist with an interest in the mysteries of the occult might even become able to shape the labirynth allowing him more freedom - beyond the limitations that "gods" put in place - and maybe even win Argos's affection as his new "god"!
You might not be able to tell, but I'm somewhat interested in those things. I'll happily engage in a discussion concerning such topics either in the story or in real life.