《黄帝内经·灵枢·九针论》
五脏精气并入一脏的病症：精气并入于肝，则肝气抑郁，而生忧虑；并入于心，则心气有余而出现嬉笑不休；并入于肺，则肺气郁结，而出现悲哀不止；并入于肾，则水盛火衰，而出现心悸善恐；并入于脾，使脾盛而胆虚，则出现胆怯畏惧。这就是五脏精气并于一脏所发生的各种病症。
五并：精气并肝则忧，并心则喜，并肺则悲，并肾则恐，并脾则畏，是谓五精之气并于臓也。
Symptoms of the Qi of the five viscera entering one viscus: if the Qi enters the liver, the liver Qi will be depressed and worry will develop; If it enters the heart, the heart Qi will be excessive and endless laughter will occur; If it enters the lung, the lung Qi will be depressed and endless sorrow will occur; If it enters the kidney, water will flourish and fire will decline, and palpitations will occur; If it enters the spleen, the spleen will be strong and the gallbladder will be weak, resulting in fear and fear. These are the symptoms of the Qi of the five viscera entering one viscera.