Waking dreams/transportation to dream world when awake

[jacrob]

I haven't had the experience of stepping into the dream world during waking life, but I have something that is similar where I have sort of flashes of dream memory that seem to be triggered by what I'm experiencing. I don't lose perception of my surroundings, it's just like a sort of intrusive memory of places and things from my dreams.

I think experience something like this...I am doing whatever and suddenly remember a dream I had the previous night. But I had no memory of this dream until that waking moment hours after the actual dream. 

this link describes it somewhat https://youtu.be/MOfs9BhETTI