I never took physics or chemistry (at any level), so this is not going to be a very technical post
I got a few questions last time I mentioned this concept, so I'll try to cover my bases a bit more this time lol.
If we need to be logical about things (not my strong point, I'll admit)...
Energy is an indirectly observed quantity that cannot be created or destroyed. Matter is equivalent to energy in accordance with it's mass, and energy can be transferred from one system to another (thank you Wikipedia).
Everything in the Universe is energy because energy is the building block of all matter. The sub-atomic particles of our bodies are pure energy, and we each generate an energy field that extends outside of our bodies.
Thoughts are a powerful form of energy because they move through time and space in a way that our physical bodies do not (you would think this belief would make me less of a cynic, but at least I have plenty of room to evolve lol).
When we talk about BDSM, we tend to focus on the physical aspects and the effect it has on our minds. Often neglected from the sub side is the focus and energy it takes to Dominate. And while the physical focus is important, the mental focus is what creates the control that makes those physical circumstances possible.
It is a circular symbiotic feeding of need on both sides of the power equation.
With enough focus of thought and energy, Alpha can make me dripping wet by touching nothing more than my head (though I have found that a hand on my head and one on my sacrum is the most intense. Maybe it has something to do with completing the loop...). Anyways, that's saying something, given the fact that I seem to be "Exceptionally difficult to turn on".
It is a very simple concept though, and the base of it is an exchange of power manifested in the focus and exchange of energy.
It's a bit like flying dreams where trying to hard makes it so you can't get off the ground, and you have to keep your mind on that even middle road to actually fly.
In one way or another, at one time or another, intentionally or not, and to varying extents--we all experience this exchange of energy because we are energy.
Where was I, ooh yes--mindsex lol.
If he goes to fast or takes me down at a speed I can't keep up with, I get an extremely unpleasant bout of vertigo and he has to bring me back up enough for me to be solid in reality before continuing. This usually only occurs if I am resisting and can cause a mild state of panic. Because I'm focusing on the sensation of loss of self more than the attachment to him.
I think that subspace (you know, that little term we all define differently but seems to be the only word we have for a particular experience), is an energetic event that manifests itself in a mental state which impacts our physical reality.
Energy is why sex is not equal to intimacy, and physical proximity does not equal closeness.