I was working at the Owning Pink Center, the integrative medicine practice I founded in Mill Valley, California, when I met Sandrine, who had been diagnosed with endometrial cancer, an often-curable type of cancer of the lining of the uterus. Her doctors moved quickly to get her scheduled for a hysterectomy, which is standard treatment for someone with endometrial cancer. But Sandrine didn’t want treatment. It’s not that she had a death wish. In fact, she had never been happier in her life, and she was doing everything within her power to cure her cancer, including radically changing her diet, meditating, and engaging in guided visualization.  Cancer, she said, was the best thing that ever happened to her.