"One must know the necessities of the body and also the necessities of the soul. The real necessity of life is to supply the comforts of the soul, and the soul cannot be comforted by material adjustments. Because the soul is a different identity, the soul must be given spiritual food, and that spiritual food is Krishna consciousness.
"When one is diseased he must be given the proper diet and the proper medicine. Both are required. If he is simply given medicine, but not a proper diet, the treatment will not be very successful. Therefore the Krishna consciousness movement is meant to give both the proper medicine and the proper diet for the soul. The diet is food that has been first offered to Krishna and the medicine is the Hare Krishna mantra: