Hi necromanteum, I don't know if I can give you the exact answers you are looking for, but here are some of my thoughts.
DMT is very powerful substance and seems like it does give most of us more information than we can handle. I used to vaporize it, but the experiences were repeatedly too much, so I switched to ayahuasca/pharmahuasca to build up my understanding bit by bit. I had some very remarkable experiences with vaporized DMT but there were too many instances where it felt like I'm seriously stretching the boundaries of my sanity, so I quit.
Psychedelics like some other spiritual practices (including intense meditation) can leave us more "open" than is comfortable or we are able to handle. If that happens, it's best to focus on very mundane and ordinary things and take it easy on the spiritual stuff. There's plenty of time to come back to the mysteries later on when you feel like your mind is stable.
That being said, phenomenologically DMT seems to open up a portal to a world that is populated by various spirits and entities who come in all colors and hues. Various spiritual and mythical traditions talk about these, but for a common person they are rarely accessible. Sometimes that reality comes through in times of extreme stress, near the loss of a loved one, or some exceptional dreams. From a neuropsychological point of view this is due to a system of neural connections called default mode network (DMN) that is active in our awake-state and enables the rational thinking and labeling our experiences. Psychedelics and other mind altering practices reduce the activity of the DMN which seems to open the mind to a more dream like and symbolic interpretation of reality.
The big mystery is that where do all these experiences come from. Are they all just in our heads or are we accessing some external independent reality? Are the archetypal figures (jesters, succubi, elves) something that are coded in our DNA or is it some collective consciousness we are building up as we go?
It may be that we cannot quite label those experiences as either internal or external. Maybe they coexist in some shared space with our sentiences, maybe they are dependent on us for existing (at least in the symbolic forms they take). It seems like the more experienced one becomes in navigating the hyperspace the more control they have over the visions and even the entities. Lots of what we go through is projection of our fears and desires (like in our dreams), but then there are entities that can't be pushed around (the jesters have been like that for me).
I try to be as respectful as possible to the people I encounter at my trips, but if they're disrespectful towards me, it's not rude to ask them to leave or just ignore them. Often, however, we must give some attention to them and look them into the eye first. It seems like whatever they are they have some kind of existence of their own and should not be despised or looked down.
In the material world we humans appear to be on the top of the heap but in the spiritual world this doesn't seem quite the case. There are entities that are very powerful and whose power can be difficult to match without training.
Developing your mental stability and some meditative skills, especially equanimity (upekkha) can help a lot in these interactions. However, if you feel like you are constantly out of control with these encounters, then it's probably not a good idea to put yourself in to situations that make you uneasy.
Take your time.