Because if they are happy then dadi JI images can have a better life, fight the power ... that anything else that exists, or has been. Our life is not a major, but happy ... happy story which equals happiness.
For if healthy Majid then it can have a power struggle with life better ... which is all that is available or not. Not as important as our life is happiness ... but happiness is there going to be a delight.
For if there is good health mind can the power struggle with life better... Which any other existing or acquired. Important as life with happiness. Happiness, what is happiness.