What does gratitude have to do with cancer? Plenty. When the author was first diagnosed, her sister said, “If you have cancer, I have cancer.” Those simple words of love and solidarity sustained her throughout treatment and became a powerful reminder of what gratitude really means. Gratitude, the author explains, is more than a fleeting emotion—it’s a way of seeing abundance in what is already present. By focusing on appreciation, patients can foster resilience, balance, and a deeper sense of well-being. Research shows that practicing gratitude can lower blood pressure, strengthen immune function, improve sleep, and ease symptoms of depression and anxiety. In this chapter, the author offers practical ways to cultivate gratitude—keeping a journal, writing thank-you notes, practicing gratitude during walks, or weaving thankfulness into everyday routines like mealtimes or shared conversations. Gratitude, she shows, is not merely a comforting idea but a transformative practice that supports healing, strengthens social connection, and helps patients approach cancer with greater peace, courage, and hope.