This is a really great question i asked my self too,
i had experiences with chesters who were very unfriendly and tried to fuck me up.
If you are able to face them without fear they will accept you, but they will look for little holes in your hull to poke you.
These entities appear to me in lower realms, where the creatures seem to be more human like and not as god like as in higher realms.
I had experiences with godlike/Shiva like creatures in the higher realms which could easily fuck me up if they wanted to, but they seem to embody both, good and evil and they have had no interest in doing me harm.
Also shamanic traditions talk about these entities in the lower realms and that it can be dangerous to go there unprepared because these dark energies seem to exist like they do here in our dimension.
I myself will do certain techniques to protect myself, just in case.
1) Burning Palo Santos or other good smelling herbs before the trip with the intention of cleaning the space and your surroundings.
2) Meditation with the imaginary creation of an energy shield before entering hyperspace (discribed in the CIA monroe files)
3) I am able to form objects in hyperspace with my voice, so you can use your voice to defend yourself if it gets really gritty (described by julain palmer).
https://www.youtube.com/watch?v=UOaFFTceUucBeing in a stable mindset that will not fall apart if something bad happens to you is in my opinion the best method and it will help you to stay sane even in hard circumstances.
There are dangers involved, but they are very similar to the dangers here in our normal day life,
if you are in a unstable state of mind and you experience something like war, the death of a loved one ore you are abused by another person, this will damage you for long term.
In hyperspace the universe just does not need physical space or time to do you such harm, but these energies will be represented by entities.
I also have the feeling that these bad entities dont get into the higher realms because of their unbalance.
These entities could really be yourself hurting you, because your soul has no boundaries anymore.
Think about how certain parts and habits of your personally stay unconscious till a certain age or your whole life because realizing them to early in your life could break you totally apart.
Everything i said here may be totally wrong but if it is wrong these rituals are just pure heuristic which dont cost much time, if i am right on the other hand you better do them to keep yourself out of trouble.
My personal reason of doing them, is because i had experiences with godlike entities who where able to transform my sould with a finger flick, i dont want to face a creepy one with this power unprepared.
But the not judging thing i a really big one, wich undermines the idea that theses eneties come from within yourself, so when you are able to not judge or even love them, they will have no power over you in my experience.
I like the idea that everything you experience sobber or on dmt is already within you, but not integrated into you consciousness, so it is in a very real way an autonomous energy.
Like in the end, we are all one!
If you smoke it right, you can't hold a pipe.