The Endocrine Link
A key point in these readings is that by pursuing the flesh and indulging the emotions (desires) of the body, we 'loose beasts,' or destructive carnal desires, within us. 1 As I'll explain below, this colorful description corresponds neatly with the actual neurochemical changes passion produces in the hypothalamus of the brain and the resulting emotional swings. The hypothalamus, in turn, 'tells' the pituitary, or master gland, which hormones to generate. In other words, Cayce was right when he said that the reproductive glands, not the master gland, are the place to start if one would understand mankind's current predicament.2 The more we choose self-gratification, the more we have to 'meet' the negative effects of passion on our endocrine system and behavior, both within ourselves and in successive generations.3
Most people think of the endocrine system as a series of ductless glands, like the gonads, adrenals, thymus, thyroid, pituitary and pineal. However, as Cayce pointed out long before scientists noticed it, every organ may be considered an endocrine gland.4 This is because all of them constantly signal the brain and other organs, and receive signals from them via hormones in an infinitely complex, continuous feedback loop. (Incidentally, when acting as neurochemical messengers, hormones are often referred to as neurochemicals or neurotransmitters.) In other words, the endocrine system is intricately linked with the nervous system in ways humanity did not realize until recently. Even nerve cells communicate with each other only via neurochemicals.
As Cayce correctly stated, our system is activated by anger, fear, mirth, joy, etc. through glandular secretions, which "flow into the whole system."5 The endocrine system is thus the link between our emotions and our physical bodies, and the relationship is circular. That is, our emotions have a powerful physical effect on our body via shifting neurochemical levels, and our neurochemical balance has a powerful effect on our emotions. Cayce claims an even greater role for the endocrine system; it is not simply the link between body and mind, but also the link with the soul,6 perhaps via the chakras.
The neuroendocrine system is thus critically important because it is the way that spiritual choices (or their antithesis) show up in the body. 7 It is also the means by which our bodies register whether we use or misuse our reproductive force, and, according to Cayce, it is the reason that sexual expression and spiritual growth/regression are linked. In other words, if we choose sexual behavior that protects our hormonal balance (and avoid that which creates imbalances), we positively affect our emotional, physical, and spiritual condition.
While Cayce has much to say about the rewards of spiritualizing sex, we will look first at the risks of earthly sex.