Hippocrates, the Father of Medicine, is the Leader of the Society of Invisible Doctors in Heaven. As a Spirit now he gives invaluable lessons to humanity on a wide spectrum of medical issues, including explanations on phenomena concerning the human organism and its health. From the usage of herbs in curing diseases to the nature of cancer. From Spirit Doctors to the poisons of modern lifestyle for man's health. Hippocrates explains how the medical profession has taken the wrong direction by seeking material profit. Modern doctors should first have humanitarian values, so that they are enlightened by the Spiritual World and can advance medical science for the help of humanity.