As one woman told me, "When I decided to come in to work happy, everybody around me became happy." This woman had decided to quit a job she hated, and on the last day of her two weeks' notice, she woke up happy. At the end of the day, she noticed that everybody around her was happy, too- so she didn't quit after all. She decided to come to work happy instead. Two years later, she's still on the job, radiating happiness and love.

An awareness of one's mortality can lead you to wake up and live an authentic, meaningful life.

It is astounding how much the immune system is strengthened by reducing daily mental stress levels with either visualization or meditation. The other great tonic for the immune system is love—loving ourselves as well as others.

Do not be afraid to love. Remember dear old Don Quixote, viewing the world with love. He saw many beautiful things no one else saw. Try being dear Don Quixote for a day. You'll see that love improves your vision and allows you to see more than your eye has ever seen before. But be forewarned: Those who look on the world with love will need a handkerchief, not to use as a blindfold, but to blow their nose and dry their tears.

Your body loves you, but if you do not love your life, it will end it far sooner, thinking it is doing you a favor.

Unconditional love is the most powerful stimulant to the immune system.

Getting well is not the only goal. Even more important is learning to live without fear, to be at peace with life and ultimately death.