Siddha system of medicine aims at reconciliation of the earthly and divine. This attitude is characteristic of Siddha medicine throughout its evolution from time remote and to all its level. The first medical treatise was by Siddhanar or Sivanar. It was followed innumerable works of Nandhi, Agasthiyar, Pulathiar, theraiyar, Pogar, Senkanar etc. The means of curing disease according to Thirumoolar is by simple herbs, salts, Theeneer, upavasam, padanam, ulokam, sathu, rasa kulikai and yoga. The three humors vatham, pitham, kapham serves as three connecting link between Microcosm the man and Macrocosm the Universe. SIDDHA system treats not the disease alone but man as whole.