The princess, who recently announced that her cancer was in remission, urged followers to nurture “that which lies beyond the disease.”

Kate Middleton celebrated World Cancer Day with a little help from Prince Louis. The Princess of Wales, 43, shared a post on her Instagram account Monday, the day before World Cancer Day, featuring a new picture that was taken by her 6-year-old son.

“Don’t forget to nurture all that which lies beyond the disease,” Kate, 43, captioned an Instagram post on Monday, February 3. The Princess of Wales is standing on top of a tree stump with her arms outstretched in the image. She was bundled up in a jacket, scarf and hat during winter in the U.K.