We haven't even been able to define the meaning of what a soul is, measure it, find it, or anything. On top of that, we don't speak elephant, and our tools to assess whether they have souls don't exist (since we can't even define them, as per above). So... Who knows?
I'd say it's a mystical concept, not specifically religious (some religions are viewing it the same way). And it's incorrect that the meaning doesn't matter.
In short, most mystical schools view the soul as something that defines the being. It's not a physical thing, but rather spiritual, or in other words - informational.
I believe the person above was saying that those who are most inclined to believe in the concept of a soul would find the importance of a definition of what a soul is to be on the low end of the totem pole.
I'm not a huge fan of things that get that close to all or nothing, but I do know quite a few religious people and they aren't particularly concerned with the definition of it so much as what it represents. Whether it is a fear of questioning something or just finding it of minimal value, I do not know.
> I believe the person above was saying that those who are most inclined to believe in the concept of a soul would find the importance of a definition of what a soul is to be on the low end of the totem pole.
Not in my experience though. But I agree that it depends on religion.
They sure show a lot of empathy and emotions.