[His expression tally... He's getting closer to that gel sticky hand every day.

But!! He'll loop back around to this Proof of Otter Hatred in a bit, since of course he finds talk about a spirit realm interesting.]

Oh? I see... It sounds similar to the spirit world that I am familiar with. Only certain people can access it or see us, but it isn't the source of dreams or anything similar.

[No memories of the world in their spirit box...]

I haven't come across anything quite like that. A "collective". It sounds like the sort of thing that would be just as troublesome to get involved with as time magic.