This might be from Hinduism, but more or less the concept is same in Sikhism too - as I have read in various kathas  

Can Sikhs jap “Raam” naam?

Why AjeetSingh? 

Some people think you have a dream home that represents your space in the dream world where a lot of dreams occur, especially those with other consciousnesses.  Like in the matrix when neo fights the train man. The train man has him come to the subway which is his domain in the matrix. Where he has greater ownership.  We can discount the night dream as not real. And that's true. That's ultimately true of this too though. 

I wouldn't