Mental Teleportation Through Dream

Recently I've been trying to find info on how this is attainable on a realistic level. I've heard that during dreams much like lucid dreams on a subconscious level you are teleported through a different dimension. Can anyone help me with this and expand on my thinking or let me know if this is wrong.

Not to sure about a different dimension, but some people believe that when you dream, you're connected to the spirit world. Hence the visitations of dead relatives and friends that sometimes pop in and out of your dreams.

It happens when your body is awake yet your mind is lucid. Not just when you are asleep. One example of this when your in your car driving and next thing you know your five miles down the road and don't remember driving the last five miles. I have spoken to many people that this has occurred with. It's like you blinked and you were at your destination. No jokes about drugs or alcohol from the people with nothing better to say.