Spent the last couple of years developing direct understanding of how we humans function, and how life in general functions, in other species. From about fish and reptiles upwards, it's pretty much the same process playing out.
I'm happy to say that yes, I found something, it's a sort of system, philosophy or method, or better said an awareness, a sort of seeing the connections. I've cracked many of the rules by which life flows, and I see that any attempt to break the rules or cheat at the game, will basically result in sickness or loss of some sort. Playing the game right results in thriving, prospering, being happy, healthy, feeling great 
I've seen parts of this game/awareness mentioned in the Tao Te Ching, TCM, Qi Gong, Yoga/Ayurveda, the work of Walter Russell, and also in the direct experiences revealed mid-trips. It's this last part that drew me in the most, because like Jeet Kune Do, it did away with rigid techniques and stuff to learn from outside, and instead focused on just letting intuitive knowledge flow forth from within.
Here's how I see life to work. Please try to keep up as the associative loops are quite large at times.
All vertebrate life has this process, whereby something like electrons (bio-electrons, bio-photons, Chi, Prana, some kind of life force, electric in nature) exists in the middle area of the body (base of spine in Yoga, Dan Tien / abdomen in the CHinese view) and with every breath we draw that force upwards, up the spine.
This is the force that can go in our heads to then be spent and used as electric signals, to process data. This same force can go to our limbs and fingers to do work, or any split in between (head or limbs). This same force actually travels from body to body, as in, when we hug each other or when we pet a dog or a cat, we do transmit this sort of electric something. We can in fact be either electron donors OR electron stealers to each other, but that's a huge topic, best addressed in other posts.
Here's an introductory explanation, perfectly normal, non-weird non-mystical, nothing-sketchy medical science.
(if vid too long, it just explains that body runs on electrical voltage, and which things affect this voltage).
So body runs on electricity, voltage, and many things affect that voltage. For one thing nutrition and hydration. Alcohol dehydrates. Smoking dehydrates. Poor nutrition lacking minerals will affect conductivity as well. What we're speaking of here is body conductivity, which if high, allows that electric force to travel well, if low (high electric resistance from toxic crap) it will take a great deal of effort for it to flow from middle of the body to extremities as needed.

Our energy source area is either the bottom or second chakra, though you don't have to believe in chakras at all, to be able to observe most of the connections I describe here. So there's this game we play, of "how much voltage do you want"?
If conditions are good, we breathe carefree and we draw upwards from base of spine, plenty of juice to run all systems. Every breath, our body draws up a quantity of electric energy that is then used to run the body for a while. If what we do with it is wise, this is a stable, self-sustaining process.
But what if we eat junk food? - toxins lower conductivity, fat IS less electrified than muscle, it DOES take more juice to keep a bigger body going, especially if more fat, not more muscle.
What if we are afraid or otherwise emotionally disturbed by the current situation and so don't breathe enough? - this is exactly what worried or depressed people do. By insufficient breath, we have insufficient energy flowing up, and so insufficient energy to complete useful thoughts or actions.
What if we're at a computer, mentally active but physically inactive for long periods? When we do this, lymphatic circulation suffers, toxins from normal cell activity no longer gets properly transported to kidneys for excretion, and so staying in our body, again, lowers conductivity. This makes less and less energy actually going upwards, for the same amount of breath put in, and this is coupled with the faint shallow breath that most people used while engaged in computer work.
Meditation is a process of breathing mindfully, eyes closed. The eyes closed part ensures we don't do a lot of external visual processing, and the fact that we breathe ensures we ARE drawing energy upwards. This energy comes and cleans, clarifies, makes connections in our brains, as well as helps restore physical tissue, as the Dr. Tennant video above explains. Breathing with eyes closed is one of the most healthy habits we can get into.
Conversely, excessive energy expenditure with eyes open, especially when coupled with insufficient breath or poor conductivity, WILL deplete us. We WILL be living at basically, low voltage. This will reflect in how we move, how we sound (voice) and what kind of thoughts we formulate. (I am not talking about sports here, which expend much energy but also draw much out, via vigorous breathing).
There are instinctive ways that the body draws us towards either low voltage (to conserve energy in what it perceives as no-way-out bad situations) or towards high-voltage (like fun activities, mating opportunities, sports, games).
Most mating games of most vertebrates, if not all, are SOME kind of demonstration of "Look at me, I have awesome voltage and epic fine control of it!" (of course to express and run that voltage right, also the biochemistry it runs on, must be healthy, vibrant, top notch).
So there are reasons why some people avoid eyes closed breathing, instinctively, and you will see that most, if not all depressed people engage in long periods of it, during a normal day. Even non-depressed people may do this, may have a clear and strong resistance to breathing eyes closed. You can look for either refusal to bring energy up (shallow breath, sighing, limp body) OR conversely, extreme amounts of wasting of energy via fidgeting, restless talking, finger or feet tapping, what we all recognize as signs of anxiety. Both of these have the same end goal: to keep body voltage low.
Finally, one major part of keeping these flows of energy healthy are interactions between us and others. I've pondered for quite some time why humans have sex without procreating, what's the actual benefit here, and also why lovers do what they do, when they fall in love.
Here's what I've come up with:
Sex with a condom on indeed does little in terms of pregnancy, but does A LOT in terms of electricity (and yes, biochemistry as well, molecules released, but am focusing on electrics here). Note that sex (When done well) is an activity of no-thinking, moving and vigorous breathing with eyes closed. What's happening is that we are pulsing our electric systems at great amplitude, synchronized, together at the same time. All the ass slapping and pushing and pulling, as well as the breathing, what it does is get us out of our heads and resets the system, sends high voltage signals throughout the network of Nadis, meridians or whatever you wish to call them. These are spikes of high activity, which we need to thrive. Sports can do this as well, but the fact that we do this with another, not using one single EM field, but two in tandem, that makes the effect much stronger.
Lovers also engage in a couple of distinct activities like deep eye contact (too long to get into here) but also stroking the skin other, touching, holding, that goes along the lines of the field, OR more aggressively playing poking, tickling, that breaks the energy field and so the body has to repair it with fresh energy. Both of these activities are very healthy, as we feel stimulated, engaged, we receive the electric energy of others and have to exercise our system to compensate for it. We've evolved to run well when we are engaged like this, when others do spend time close to us and interact directly, and let us interact with them in kind. It's like an electric ring, I give to you, you give to me. When this flow exists and is strong and vibrant, that's when we thrive, when we are healthy.
Now this last part is what I wanted to get at, and link it with the beginning of the post. We flow electrons from the belly upwards, up the spine and then down the arms and fingers, into whatever or whoever we're touching. We basically, give each other affection, warmth, energy, when we touch, hold hands, etc. How much, that depends on how much we breathe at the time of talking, and (this is key) where our attention is pointed. With eyes closed or watching the other person, we give full energy that we can give, with each breath. With eyes open however, there is this effect (observed it but can't theoretically explain it yet) of throwing energy outwards, not giving it via hands.
So there is this depleting of energy when we hug with eyes open (looking elsewhere, at distance) or holding hands but with attention far away. There's also that attempt that some people have, to avoid giving energy to anybody, because they fear connection, attachment, they've been hurt in the past.
Excess energy gathers inside as boredom, they HAVE TO do something, we are created in that way, to engage and connect, to not be idle for too long, and so if one doesn't flow it into something or someone useful, one has to waste or suppress it. Video games, food, alcohol, cigs, you name it. There's something so right about holding hands or putting hands on another living being, and so weird about putting all that energy on just plastic, glass, metal or cigarettes.
The normal natural process is that electrons flow from being to being. When we have trouble with intimacy, some of us try to make it from human to computer, from human to exercise machine, from human to nothing (which then turns into over-eating or cigs or booze, to reduce body voltage in that way).
So all this being written, thank you for reading this far, question is who or what are you flowing your electrons into? Does it satisfy you? Does that also give electrons back, and does it do so to your liking?
Wow. Long long post. Please keep in mind this is a couple of years of observations I'm trying to put together here, so some specific Q&A may be useful to narrow down the focus a bit.