The discussion on pathomechanical changes of heart-spirit disease pattern from the vacuity detriment of heart

The heart tends to suffer from detriment (sun) and from diseases that belong to vacuity patterns. Due to the heart's governance of the spirit-mind, the depletion of heart yı̄n, yáng, qı̀ or blood will give rise to a variety of pathological changes of the heart-spirit. Heart qı̀ vacuity may result in insufficiency of spirit-qı̀, mental confusion, heart-spirit dissipation and desertion. Heart yáng vacuity can lead to devitalized essence-spirit, or fulminant desertion of heart yáng. Heart blood vacuity probably deprives heart-spirit of nourishment, even leading to the spirit's failure to abide. Heart yı̄n vacuity may lead to the heart-spirit becoming deprived of nourishment, giving rise to fulminant desertion of heart yı̄n. It thereby shows that heart diseases, due to either yáng qı̀ depletion or heart yı̄n blood insufficiency, can result in disease patterns of heart-spirit.