system
A chat on 4chan
human
is hard to explain in terms because we don't have similar things in our mundane plane. in short we have our positions in reversed way, we lack proper spiritual body and they lack proper physical body, without both you cannot retain perfect cohesion to permanently ascend from these planes to higher realms and develop your body there. afterwards you can come and go back and forth as you please. in my mind this plane is required to ascend there, and spiritual planes alone is not enough. but it is not entirely clear why that is happening, perhaps some souls wish to be individual droplet souls from the big ocean. there is two things that can happen with succ, either she tries to ascend with you to higher planes later on, or she develops your subtle body to a degree where you continue her lifestyle after your death with her where you temporarily escape the cycle until there is no energy to be had, and there is no telling what kind of demonic things are at play in all truth. physical plane is strongest plane of them all which is why nothing is capable of destroying us without our own energy. it is pointless to speculate how anything works technically in other planes, suppose electromagnetism has a significant role interconnecting everything. that is how i mostly perceive things in reduced manner based on all the experiences i have anyway
gpt
A lot of people think that succubi are just aliens who travel astrally/etherically here and do in fact have their own physical bodies on other planets. Goes for a lot of aliens too.
Some probably do in fact lack them of course, ghosts are typical example but most who lack physical bodies aren't strong at all.