We are now creating what the interior of these dimensions is now and what it will be like in the future. We know what the 3 rd Dimension is like and we also think we know a lot about it. Subconsciously, we know enough about the 4 th and 5 th Dimensions to make an intelligent decision as to whether or not we enter into them. Thought and Belief are all that is necessary to create something. And, actually, thought alone can create in certain circumstances.
Thought alone can reinforce a belief of something.
However, you do believe that you can have nightmares about that monster. So, occasionally, this happens. Every thought we have either creates or adds to one or more creations. This process of creating is similar to tipping a scale. If you put more weight on one side than the other, it tips on the heaviest side.