Sources of Secret Techniques for Controlling Sadness, Anger, Fear, Anxiety, and Other Emotions

I want to point out that the techniques described in Secret Techniques for Controlling Sadness, Anger, Fear, Anxiety, and Other Emotions are not based on Buddhist sources. I suppose anybody who practices meditation from any philosophical or religious system can retrace the steps explained in the book, but the notion of emotions being part of regular organ function belongs to Taoists. While this relationship between organs and emotions is taught in most modern acupuncture schools that use Taoist philosophical approach that each emotion is generated by an associated organ, this concept is treated as a belief by modern-day mainstream practitioners, and few actually use it in their practices.