How does the concept of a "soul" work in the case of co-joined twins?

They certainly have separate personalities.

@Dutchess_III You don’t believe in souls, so why do you ask questions that cannot be answered without you discounting someone else’s belief?

As much as conjoined twins are two distinct people, even though fused together, people who believe in the concept of a soul or life force would generally believe they have two distinct souls.

Well, I started to preface it with “For those who believe in the concept of a soul…” but decided that was too narrow. I want anyone to comment on it that wants to.

@Patty_Melt, that was an interesting comment. Is the soul tied to personality in some way?

I agree with @zenvelo . They are two separate people. So if each person has a soul, they are two separate souls.

So is it the presence of a brain that creates a soul? These are the same questions I asked when I was a practicing Christian, so please don’t read any insult where there is none.

My perception is somewhat different from what you ask.
Just like people say their heart is broken, or full of love, we know love is in fact not at all involved with the heart. It is a brain function. It is the brain’s individual reaction to perception of events and environment.

So in the same context, I would assert that a soul does not exist in a segment form, but is the term given to the aspects of conscious thought and personality traits of a given individual. Hence, when the brain dies, the person ceases to exist.

On another note, the belief in NDEs and post death knowledge can be explained by the lack of knowledge which exists about human brains. I believe it is possible that medical equipment may be not capable of fully detecting brain activity. It may be humans have been aware of their surroundings beyond a perceived cessation of brain activity because medical personnel and equipment were unable to recognize a lingering brain activity.
This is supported in a small way by people “returning to life” after only a short time.

Anyway, in regards to the question of soul, I do believe that is a term applied to the functions of the brain which define individual personality.

If I’m wrong, then I hope good souls continue to exist after the death of their host bodies.

Sounded good to me @Patty_Melt.

I represent a variety of perceptions on this and similar situations in my writing.
In my view, conjoined twins are individuals, sharing certain body parts much as they share the same parents. Having parts shared does not remove their individuality.

Now, sometimes a bad situation occurs where a conjoining is a few body parts form for a second baby, but no separate brain. In that case there is only a single baby, conjoined with some non person parts.
“Heartbreaking” when it happens.

Soul is a Platonic notion.

Plato might have suggested that conjoined twins had no soul, thus the deformity.

The Ancient Greeks practiced infanticide (not by outright violent killing but by abandonment and exposure)

Conjoined twins probably did not live long when the concept of soul was invented.

Well, certainly many have.