not to be that
If someone is saying they feel like they are running out of energy they are probably performing their practice incorrectly, you should only ever draw power from your center of gravity, aka your lower dantian, never try to use energy from any other part of your body as that will result in headaches and all sorts of things.
Can you clarify on your context? I ask for a few reasons.
Exhaustion isn't indicative of proper practice per se. It can be indicative of a lot of different things. As such, the argument with the more qi you have doesn't necessarily mean you have more
to decrease exhaustion. That is not actually what many different schools of dao don't have in mind both from a TCM perspective or a nei gong (alchemical) perspective. If anything, I would be slightly concerned if someone wasn't tired after my practices. They're generated to use qi and open channels and so on. Naturally, opening the channels can result in a lot of different responses including exhaustion and heat and so on and so forth.
Secondly, depending on the lineage, you will have other sources of focus other than the lower dan tian. That doesn't necessarily mean the practice is incorrect. You seem to be confusing the rough location to the lower dan tian with the TRUE dan tian. That's not the case since the true dan tian has no location. Feelings (absent or otherwise) are used as a means of focus, but that's only a door to the true dan tian. I make the distinction between lower dan tian and true dan tian for a lot of different reasons. Mostly, this is due to the nature of esoteric practices by several lineages. Many authors write lower dan tian, but in reality, they refer to the shift of conscious both outside of the body and inside of the body. True focus on the lower dan tian has less to do with location and much more to do with a shift of consciousness accessed through the kinesthetic feelings of the lower dan tian.
So to say, draw qi from the lower dan tian is a misnomer for a lot of different reasons both from an alchemical perspective and a medical perspective. Can you clarify on what you mean on that point?
The main point here is not to use the (jing) energy from your kidneys or brain in your practice*.
It seems like you're confusing a few things again. Keep in mind jing has many many
interpretations. That said, which jing are you referring to? Are you referring to the generative lubrication of the body that cools shen fire? Are you referring to the force created where qi and shen coagulate into usable martial force? There's a lot of jing. And we use / lose jing all of the time. There's very little classification, however, of kidney jing from an alchemical perspective. Postnatal jing? Sure. Prenatal jing? Governed by heaven, karma, and a lot of other things? Absolutely.
There is a lot of TCM documentation on kidney jing I understand and frankly, my experiences do not mesh with the TCM (I mean heck the alchemical practices don't mesh with something only 50 years old).
Energy within the body is quantitative, if you run up a hill you get tired because you are out of energy, there is no clear dividing line between metaphysical sources of energy and physical sources of energy.
Isn't that qualitative by nature then?
Energy does not relate back to one thing, sometimes it refers to heat within the body, a persons ability to hold concentration, physical momentum, the adrenaline produced above the kidneys, or even just the potential of oxygen from every breath you draw in.
Not...quite? The heat and so on usually refer to the by products not in as much energy itself. And the physical sensation you identify as energy you can't necessarily say it's yang qi (for instance). It can be dampness, phlegm, yin vacuity, lots of different sensations to denote heat (for instance). So I'm just unsure what you mean by that.
In energy work it's almost the same rule, work from your center of gravity, COG aka lower dantian; cultivate energy into the dantian through meditation and abdominal breathing, then send that energy to other parts of the body or use it in your psionic practice, magick, reiki etc.
I'll just take a mo pai approach here (well really chan buddhist but semantics considering there's a lot of overlap between the foundation methods). It can't be controlled. Simple as that. At higher levels of cultivation, you really can't control the energy. Simple as that
I've got a lot going on in my head with "what about this situation or that situation", like what about vampirism or kundalini or other dodgey practices that use jing,
They don't use jing
But just to provide an alternative perspective (especially related to the vampirism), people with a weaker dan tian pull xie qi from others which in turn pulls their sickness. It isn't indicative of vampirism per se, but more so indicative of the nature of their body. The dan tian acts as a protective mechanism so that isn't pulled since it becomes your own.
Said in another way, empathy.
There's a lot of things that we interact with every single day. Let's not describe it as jing. Since you lose jing every single day. Heck, lost some writing this post! That doesn't mean my practice will suffer, however. It's just the nature of jing
Don't get obsessed with conserving jing. It's almost impossible.
* The exercises that people do which use jing usually relate to circulating jing around the body especially in the brain, the joints, kidneys, genitals and that maybe as simple as rotating your joints in qigong or performing the microcosmic orbit exercise; however it is only ever circulated around the body (or between 2 bodies in sexual practice) and is not outwardly used or expelled.
Still. Not jing. I recommend you read thishttp://forums.vsociety.net/index.php/topic,20895.msg225334.html#msg225334