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The Heart and Kidney support each other, spreading Life Fire (Yang) and Essence (Yin) evenly throughout the body. People develop patterns of disharmony that reflect their constitutional dynamic. When conflicts ensue, Warmth may turn to Heat, leading to Dryness and deficiency in the Upper Burner, and Moisture may accumulate, leading to Dampness and obstruction in the Lower Burner. Harmonizing Formulas reconcile such primary conflicts arising along the Ke sequence.

The Kidney and Heart represent the Yin-Yang axis of the organism: the polarity between Water and Fire, lower and upper, Essence (Jing or soma) and Mind (Shen or psyche). The role of the Kidney is to generate Marrow (Sui), consolidate Essence (Jing) and fortify the Will (Zhi). By accomplishing this, the Kidney maintains the fundamental matrix of the soma (bones, marrow, gonads, brain and spinal cord).

The role of the Heart is to enfold the Mind (Shen) and perfuse the Blood (Xue). The Heart maintains the integrity of our embodied consciousness: the Heart governs the Blood, and the Blood is the material substrate of the mind, so when the Blood flows unimpeded, we are vibrant and alive, composed and present in the world. The importance of harmonic interaction between the Kidney and Heart is repeatedly emphasized in classic and modern texts as beneficial for healthy growth and development.

RATIONALE

Harmonize Water & Fire tonifies Blood and Moisture, consolidates Essence, disperses Blood, dispels upper Heat and lower Cold and supports mental wellbeing.

To harmonize Kidney-Heart, a formula must reunite Essence (Jing) and Spirit (Shen), Water and Fire. Prepared Rehmannia root, Lotus seed, Schisandra fruit and Polygonum multiflorum stem nurture and consolidate Essence, Blood and Moisture, while Chinese salvia root and rhizome, Polygala root, Reishi fruiting body and Dragon bone soothe the Spirit and support healthy circulation. As assisting herbs, Chinese licorice root and rhizome, Coptis rhizome and Anemarrhena rhizome protect Yin by supplementing Moisture and clearing Heat. Siberian motherwort herb, Chinese cinnamon bark and Chinese amomum fruit, respectively, encourage the downward flow of Blood, stabilize Qi and aid Yang by warming the Qi. This encourages harmony between Heart and Kidney, supporting emotional and mental wellbeing, good sleep, a healthy nervous system and overall vitality.