Shared dreaming is a very romantic notion, and I don't want to put you off trying, but how is it supposed to work?

I can see a way that shared dreaming might work in the future where a direct link is made between consciousness of two or more subjects, but that is still several decades away I suspect.

(If even now we can image what a person is seeing by a brain scan of the visual cortex, why not reading and creation of such images between subjects in the future?)