I can answer most your questions just ask me.
For the omnipresent thing…
It’s like this.
These spirits are far more than what people say or think they are and so are you.
Right hand left hand it doesn’t really matter.
Many of the right hand spirits are actually also the exact same left hand spirit.
Saint Brigit for example is actually a Celtic fire goddess which the church turned into a saint on account of her popularity. She is also the Hawaiian goddess of fire known as Pele as well as many other masks given to this universal aspect by the culture that recognized it.
Likewise the demon of the Goetia known as Bael is actually the Canaanite god Baal, also knows as Baal by many Mesopotamian cultures. He was “demonized” by the early Hebrews because he was a competing god. The age old story of one man’s god is another man’s devil.
The Goetia is simply the most recent flavor of the universal aspects that has taken root in the collective consciousness and my personal favorite because of how new it is but it’s truly no different than Christian saints and angels, ancient pagan gods or the Hindu pantheon. It’s all the same.
Secondly these universal aspects exist within both our physical world as the object they represent such as Baal or Bael or Yahweh or Zeus all storm gods and storms are something that exist in our physical world.
The consciousness of these universal aspects that represent physical parts of our universe are not the kind of consciousness that you and I as humans have. They do have consciousness but where as our consciousness is based on our observation and response to our environment through our senses theirs is not. Our consciousness is based in observation theirs is based in being. We can’t easily comprehend their consciousness because our minds don’t work that way. The easiest way to explain it comes strangely enough from a Lovecraft quote about the old ones. “for us humans our consciousness is held together by our form but for the old ones their form is held together by their consciousness”.
Now as for appearing to more than one person at a time. It’s like this. They exist in the realm of thought and mind where time and locality have little to no meaning and certainly are not linear. Past present and future all exist simultaneously and at the same time not at all. Position and locality are likewise. There is no place where consciousness exists, it exists simultaneously everywhere and nowhere.
Because of this they can interact simultaneously anywhere as well as retroactively. You can ask a spirit for something and it can go into the past to begin the chain of events necessary for it to manifest in the present.
And one more thing, psychic development isn’t about gaining an ability you don’t have it’s about becoming aware of what is already there.
If you have any other questions please feel free to ask me I’m one of those few people who actually has an answer and will give it to you straight up without attempting to mask the fact that I don’t know with vague and obscure riddles like some kind of Yoda or something.
Also you had results with the angelic version of the universal aspect because it is the flavor you have preferences for and your subconscious responds to that and there is nothing wrong with that at all.