I believe we have the ability to tap into different “wavelengths or different realms” one of which is the dream realm. I’ve always believed that when it is night and most people are sleeping and in the same state of slumber as you, everyone’s brains slows down, shuts down. Thus leaving the “air” time to rest from negativity, worry, anxieties. There, in our sleep we fall into Delta, where our brainwaves can tap into something, or a somewhere that is better, higher, more beneficial, infinitely good.