A beginners guide to dimensional manipulation.

This morning I woke up, had a cup of coffee, had a doughnut and cleaned my room. However this isn't the only perceivable reality. Reality consists of every possible option which exists within that sentence. I could have slept in, I could have had juice instead of coffee, I could have kept my room filthy. As I type that, I'm imagining that alternate set of options. That alternate set of options coexist along with the options that I have already made. This alternate set of options is just as real as the chosen set.  While that example is a bit abstract, a more tangible description of  reality is simply imagination and choice. Imagine if you will, you are sitting at a restaurant and you have finished your meal. Your stomach hurts and now you want to use the restroom. How do you get there? You construct a mental path from your seat to the restroom that you eventually follow. This mental path that you constructed engineered an alternate dimension which you eventually shifted into as you went to the restroom. In another parallel reality you are still sitting there with a desperate need to go to the restroom. As we visualize our path, our path manifests. This is a strong emphasis of the holographic universe theory.
"Our perception creates a duality of subject and object, of the subjective and the objective.  We think of information as objective, and experience as subjective. In fact, no such dualities exist.  Information and experience are one and the same.  Every particle in the universe is alive with experience.  Every organism is alive with experience.  The Universe is alive with experience.  On the universal level, experience is one.  We are one with this universal experience." (MARK GERMINE Institute for Psychoscience) 
In tern, imagination is our conscious control over perception and as we are imagining we are actively molding and effecting our reality. We are surrounded with thousands of possibilities at any given moment for every single moment and those alternate possibilities are in fact dimensions. Imagination is the gateway to what we would normally perceive as impossible. With that said if we feel as though we can't or things won't happen as we choose, we are merely aligning our perception to that outcome. In short we have more control over our reality then we give ourselves credit for.