When people view the world with the vision of love, they will have peace. All diseases will be cured. Most diseases have their origin in the mind. Everything has a psychological basis. When a person feels that something is wrong with him, he develops an illness. A healthy mind is needed for a healthy body. But it is not enough to be physically healthy. Man needs God's grace also. To acquire God's grace, you have to cultivate the love of God.

Sri Sathya Sai Speaks, Vol 28 (1995) 

Sri Sathya Sai Baba maintained that just as physical health, mental health is very critical for spiritual growth. As part of the service activities, volunteers of the Sri Sathya Sai Organization conduct mental health camps to help all those in need.