What you are feeling is snake energy; chi; lifeforce
I teach anatomy and physiology at the community college level and every semester or two, this issue comes up while we are discussing electrical potentials and membrane depolarization.
My response to my students is this - show me one shred of credible evidence that this "lifeforce" or "chi" or "----- energy" exists. No, you can't use "aura" photos, you have to use real scientific means, like a potentiometer, voltmeter, electocardiogram, etc. The funny thing about "chi" is that it always comes up when we are discussing EKGs. I have some bad news....if Chi really existed, EKGs wouldn't work as this "energy" would certainly drown out the depolarization and repolarization of the heart muscle that an EKG detects.
I'm not saying I know that it doesn't exist, I'm just saying show me that it does. There are people that believe in ghosts as well, but that doesn't make them real.
When I stroke him, I wouldn't say it's an electrical hum, but there's definately an energy state that is different from my own that calms and energizes me at the same time.
That appears to the trick to "chi". It can't be measured, but it "exists" all the same.
Here's an interesting test. Take a freshly dead snake and hold it in one hand. Then take a completely anesthetized snake and hold it in the other hand. Can you tell which one is which by detecting the "chi" from the live one? My money says no.
Native American, Japanese, Aborigine--cultures all over the world--recognize mystical/metaphysical snake energy as part of their belief systems.
Ahh, there's the rub. It is a "metaphysical" energy, therefore it evades any attempt to show that it really exists.
Clump, clump, clump.(steps off soapbox).
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Chris Harrison
San Antonio, Texas