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Excuse the delay, I kept forgetting to return. I think Matrixneo has the answer basically. We are held in place by the 3D system normally, but sometimes it cracks open and we see through it. Seeing energy, auras, telepathy, all the first level powers we all have the capacity to do.
These can then expand infinitely if meditation or other ways gradually (or occasionally suddenly) release us from the grip of the 3D illusion, that we are only our body, in a limited timespan and incapable of interacting with the environment using the power of will and thought alone. Dreaming of God is the ultimate embodiment of this escape, and while partly inspired by teaching if it is then accompanied by actual knowledge or abilities it leaves the dream realm to reality. People have sought this state from the start of humanity and some claim to achieve some or even all of it, but can't really demonstrate it to others as much is an inner experience.