"Spiritual sufficiency is the best health insurance"

Hua-Ching Ni wrote a book called, "Esoteric Tao Teh Ching."

What he means by spiritual sufficiency is that we have a personal reservoir of Tao that can become depleted, leading to illness. He cautions against exhaustion and suggests gathering and nurturing the "natural resilience of the universe."

Here is a quote from his translation of the Book Of Tao.

The way of Heaven benefits
and causes no harm.
The way of wise people
is to nurture their inner essence.
They do not fight.

And like our American philosopher, Thoreau, he advocates simplicity as an approach to living.