Sensei's Four Guidelines for leading a Healthy Life

"The Buddha's benefit is life force; it is the power to thrive." 

"Each day, 
we receive this immeasurable benefit from the Gohonzon. 

(The Gohonzon = the power of our own lives manifested when we chant Nam-myoho-renge-kyo)

Therefore the more we praise 
the great, beneficial power of the Gohonzon, 
the more our own lives will increase 
in majesty and power and shine with brilliance.

"With faith in the Gohonzon as the foundation, 
we pray, take action, 
and speak out for the happiness of others. 

The maintenance of this correct rhythm 
directs one's entire being 
toward longevity, health and happiness. 

To explain the rhythm of faith manifesting itself in daily life in practical terms, I once proposed the following 

Four guidelines for leading a healthy life:

1 ~ Do an invigorating daily gongyo
2 ~ Conduct your daily life in a reasonable and productive manner
3 ~ Be of service to others
4 ~ Maintain sound eating habits

It might be said that faith in the Mystic Law is the fundamental catalyst of health and longevity."

From the Heart of the Lotus Sutra, by Daisaku Ikeda, page 154.