A diseased mind is even more harmful than the disease itself....because a diseased mind will be affected by the most dangerous organism fear which penetrates into the deep core of the heart and takes out the aspect of will power which makes the diseased person lose the hope of living. Medicines cannot do all the work, it needs the cooperation of our will power and then only will be able to recover fast. If we lose our hope to live then no matter how much ever medicine we take will not get cured. So,mental strength acts as a doctor to the diseases which cannot be cured by medicines