>>4502
>Are the body and the soul equivalent things at this point or is there simply a very strong bond between the two?
The body stops being a fragment of the humanity hivemind, and becomes a manifestation of your own soulform.

> Does this mean that dreaming is impossible for undead beings
No, because dreams are information from other dimensions, including random messages, telepathy and your subconscious arranging your memories.

> are all beings who merge their physical and astral forms considered undead
You have to actually die to be called "undead" for real, which means all assistant souls die and leave, the collective body of humanity is detached and you stay with your own manifested bodily form. This can be done by yoga, vampirism and other occult and esoteric practices. I think it should be seen as "undead" meaning someone who died and is still here. While a non-undead immortals leaves when they die, and will only come back to guide people if there is a really good reason, and they appear as a light being or ghost when they do this.