You must know the difference between imagination, theoretical knowledge and true realization. Could you nourish yourself by only listening to a talk on food? To know food only theoretically is to always remain hungry. You must eat to satisfy hunger. So he who seeks new doctrines continuously but does not put them into practice in his life is in continual spiritual starvation.
Paramahansa YoganandaIn vegetables and fruits, God has infused medicinal power to help in overcoming disease. Even these, however, have but a limited potency. The organs of the body are essentially sustained by the energy of God, and the person who employs various methods to increase this energy will have at his command a greater power for healing than is afforded by any medicine or diet.
Paramahansa YoganandaIn your heart must well that sympathy which soothes away all pains from the hearts of others.
Paramahansa Yogananda