Greetings theological protagonists! Here's the premise to my basic question...?

Nature.

Simple answer; there's tons of made up crap about super beings.

It is slightly beyond admitting limits of human comprehension. Although "religion" can be used like chopped liver in various recipes, the way "spirituality and religion" are explained by my mainstream denomination is simply this - spirituality is a compulsion/desire/sense/craving to seek the transcendent, religion is the revelation of the transcendent which the average seeker (as per your clarification) cannot discern through own limited means. This is where "prophets" come in. Why isn't everyone a prophet? I suppose it's like similar reason why not everyone is a genius - few are enough, of prophets and genii. Anyway, so, while people, even prophets, cannot discern the transcendent, such as God, God is believed to reveal His edicts through prophets of His choosing. Rest of us, the "blind" following whoever claims to have sight, take their word for it if we are courageous enough to believe, or, stay put paralyzed by fear of being wrong or regarded as silly or irrational.

So, while adherents admit to be unable to comprehend something, analogous to pupils who do not comprehend a lesson but trust their teachers, so do such subscribers trust the prophets. It really, really helps believers if the prophet adds something even bit prophetic which later comes to pass.

From my understanding of God's will for me (and the faithful in general if they are at such stage in their growth), I'm not aware of any significant burdens He places on me per my understanding of "revealed guidelines" - He just wants me to live conscientiously, talk to Him like a little enthusiastic child would to his parents describing the adventures and pains of his day, that sort of thing. It's a good thing I'm not asked to offer goats and sheep anymore, as I don't think my city's by-laws would permit keeping livestock in the downtown core :) and speaking of which, I do offer my gratitude for my lame sense of humor, which to me is worth way more than all the sheep I could ever offer, IMHO.

How do i know what God wants? It breaks to two categories - what He wants sort of in general out of the collective, but the most important category - what He wants from each individual. He may ask something different from me than from you, likely involving our mutual talents, resources, abilities and such. I doubt I would make as good a Sunday school teacher as you, as such am not aware of being pulled in that direction; nor is God asking you to be a stand-up comic cheering up others :) point is, to the best of my ability of being aware of what God wants of me at my current stage, is what I strive to meet. Later He may "ask" more, I doubt He will express it verbally, likely will send someone into my life suggesting a theme that will resonate within me and inspire me to raise the bar and strive towards the loftier ideal.

I don't know what plans are in store for you. Quite frankly I don't know my own. Come to think of it, when Moses lived in exile tending sheep and being devoted to his family, I doubt it occurred to him one day he would challenge Pharaoh and be an instrument of God with a role in Exodus of the Jews. Today I crack my lame jokes which sometimes make a depressed stranger smile, tomorrow I may rule the world, in either case, it is always today for me, and today I live conscientiously as best as I can, as my strength permits. Tomorrow, if so be His anonymous will, another path may open up for me, and if I take it, I know it will still be me, the same harmless wisecracker I'm today, cracking more lame jokes on my new path tomorrow. So what exactly is His plan for me, as far as I'm aware? To live authentically, in His presence, no matter where the journey leads. How do I know? It is my life, prophets added details filling in some gaps, but ultimately my life is the only one it is, and it is this, with the "shepherd" whom prophets described accompanies me through the valley of the shadow of death (if I may get a bit poetic).