Nerefa

Yeah, the concept of communication with the oustide world via sleeptalking is very interesting. I remember I did it with my cousin once. For some reason he was up till 3AM playing this multiplayer game and was talking to friends. This made its way into my dream and then i started talking to them. WE were having a whole conversation until I woke up. I was so confused for a second cause I was like "Your voices were completely different characters" and we had a laugh about it.

We got to theorizing that if somehow we were both lucid at the same time and slept in the same bed, then we could communicate from our separate dreams. It wouldn't quite be shared dreams, but it would be really cool to do!

Note that a visual anchor may work if you are someone who can learn in that learning style. It may not work for anyone who has trouble with VisualiZing or Aphantasia.