《黄帝内经·素问·气交变大论》
它的自然灾害在四隅，在人体应在脾脏，其病所，内在心腹，外在肌肉四肢。
其眚四维，其脏脾，其病内舍心腹，外在肌肉四肢。
Its natural disasters occur in the four corners, in the human body it should be in the spleen, its pathology, internally in the abdomen and heart, externally in the muscles and limbs.