Do you know this planet ?

[Questioner]

I've not had any comparable experience, but it is interesting to learn about your experience.

Perhaps you could ask a direct question about this, with the focus on your question as you go to sleep as Peregrinus has described. Something like, "Please help my conscious mind on Earth to know, understand, and remember the identity of the world I like to visit in my dreams," or whatever specific question you'd most like answered.