Kate Middleton shares a powerful new photo of herself, taken by Prince Louis, 6, for World c ancer day

Kate Middleton shares a powerful new photo of herself, taken by Prince Louis, 6, for World c ancer day

The Princess of Wales stood in the sunshine in the new picture by Prince Louis.

Kate Middleton is sending a personal message on the eve of World Cancer Day three weeks after announcing that she is in “remission” from cancer.

World Cancer Day is observed internationally on Feb. 4, and the Princess of Wales, 43, shared the message on social media the day before. The post came with a new picture of Princess Kate standing and smiling in the woods with arms raised, with photography credit given to her son, Prince Louis, 6.

“Don’t forget to nurture all that which lies beyond the disease. C,” read the message, along with the hashtag #WorldCancerDay.

PEOPLE understands that the new picture of Princess Kate was taken by Prince Louis in Windsor, and the post included a second shot taken by the princess. The image showed a closeup of branches, also taken in Windsor.

Interspersed over it were the same words in white text: “Don’t forget to nurture all that which lies beyond the disease.”

The picture credited to Kate seemed to be zoomed-in view of ferns — a poignant plant that has inspired jewelry she reached for last year. Ferns are interpreted as a symbol of endurance, resilience and new beginnings, given its ability to flourish in diverse conditions.