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Gancao (Licorice Root) is incompatible with the following herbs: Daji (Euphorbiae Pekinensis Radix), Yuanhua (Genkwa Flos), Gansui (Kansui Radix), Haizao (Sargassum).
Wutou (Aconiti Lateralis Radix Praeparata) is incompatible with the following herbs: Banxia (Pinelliae Rhizoma), Gualou (Trichosanthis Fructus), Beimu (Fritillariae Cirrhosae Bulbus), Bailian (Pleurospermii Radix), Baiji (Bletillae Rhizoma).
Lilu (Veratri Radix) is incompatible with the following herbs: Renshen (Ginseng Radix et Rhizoma), Xuanshen (Scrophulariae Radix), Danshen (Salviae Miltiorrhizae Radix), Shashen (Glehniae Radix), Kushen (Sophorae Flavescentis Radix), Xixin (Asari Radix et Rhizoma), Shaoyao (Paeoniae Radix).

8. A question was asked: "Beside the seventh vertebra, there is the 'Xiaoxin' (Lesser Mind)." Some point to the Mingmen (Gate of Life) acupoint at the lower seventh vertebra as the "Xiaoxin"; some interpret "Xiaoxin" as "Zhixin" (Will Mind); some interpret "Xiaoxin" as "Shaohuo" (Ministerial Fire), and further interpret "Shaohuo" as "Xianghuo" (Ministerial Fire). Why are these interpretations so disparate? Please explain in detail.
Shengshengzi said: This statement originates from the *Stinging Forbidden Points* chapter of the *Neijing* (Classic of Internal Medicine). Qixuanzi (Wang Bing) annotated: "'Xiaoxin' refers to the palace where the true heart spirit resides." In his annotation of the *Yin Yang Lei Lun* chapter, he mentioned that the New Corrections state: According to the *Taisu*, "Xiaoxin" is written as "Zhixin". Yang Shangshan considered "Zhixin" to be the kidney spirit, thus counting backwards from the lower end of the spine to the seventh vertebra to identify it as "Xiaoxin". However, the Mingmen acupoint is located between the fourteenth thoracic vertebrae; if counted backwards from below, it would also be at the eighth vertebra, not the seventh. Moreover, he failed to consider that the *Jing* (Classic) states: "If the pulse is deep, thumping, and does not float, it affects the upper part, reaching the Zhixin" (This indicates excessive yin pulses and weak yang qi, causing upward traction to the heart, similar to conditions like Ben Tun [running piglet], accumulated gas, or hernias). Qixuanzi annotated: "When the pulse is deep and thumping but does not float upwards, it signifies insufficient heart qi, leading to upward traction and disease in the heart." This annotation is correct. If this were referring to the kidney, the words "affects the upper part" would not exist. This is an error by Yang Shangshan; consequently, later scholars equated Mingmen with "Xiaoxin", "Xiaoxin" with "Shaohuo", and "Shaohuo" with "Xianghuo", creating infinite confusion and inversion, all stemming from this single error.
Someone asked: Then what exactly is "Xiaoxin"? I replied: Hu Bo Ren, in his annotations on the Heart Meridian in the *Jing Du Pian*, stated: "The Xin Xi (Heart Connections) has two parts: one connects upwards to the lungs, entering between the two large lobes of the lungs; the other descends from the lung connections, curves backward, connects via fine networks along the spine and back, penetrates the spinal cord, lying exactly between the seventh vertebrae, and communicates downward with the kidneys. Generally, the connections of the five zang organs all connect to the heart, and the heart connects to the connections of the five zang organs." Furthermore, according to the diagrams of the internal organs, the shape of the Xin Xi is indeed as described. Based on this, "Xiaoxin" is the Xin Bao Luo (Pericardium). He Yiyang also stated that the origin of the Hand Jueyin Pericardium Meridian is precisely two segments below the fifth thoracic vertebra of the heart, beside the seventh segment, level with the Tanzhong (Conception Vessel 17) acupoint; they must not be confused. If one were to count backwards as they did, the heart would be at the fifteenth vertebra, and the lungs below the nineteenth vertebra. Since the *Suwen* (Basic Questions), no such method of backward counting has ever been heard of. The *Ling Shu Jing* (Spiritual Pivot) states: "Tanzhong is the palace city of the Heart Master." This aligns with Qixuanzi's annotation of the "palace where the true heart spirit resides," because the Xin Xi connects to the spine and back, penetrating the spinal cord, lying exactly between the seventh vertebrae. The method of counting seven segments downwards from the bottom originated with Yang Shangshan, and He Yiyang had already refuted its errors in his *Yi Xue Tong Zong*; I will not add further details.