When we look after and care for others—that is, help others draw forth their life force—our own life force increases. When we help people expand their state of life, our state of life also expands. That is the wonderful thing about the bodhisattva way. The practice for benefiting others is one and the same with the practice for benefiting ourselves.

From The Wisdom for Creating Happiness and Peace, part 1, revised edition, p. 230