The body is a treacherous friend. Give it its due; no more. Pain and pleasure are transitory; endure all dualities with calmness, trying at the same time to remove yourself beyond their power. Imagination is the door through which disease as well as healing enters. Disbelieve in the reality of sickness even when you are ill; an unrecognized visitor will flee.
– Sri Sri Swami Sri Yukteswar Giri
“Autobiography of a Yogi”