Fans think they've 'worked out' the meaning behind a beautiful detail in Kate Middleton's recent video.
Earlier this week, Kate, 42, shared a heartwarming video, explaining that she had finished her chemotherapy treatment.
The 'emotional' video, captured by Will Warr, showed the Wales', along with their three children; Prince George, 11, Princess Charlotte, nine, and Prince Louis, six, enjoying the great outdoors.
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The Princess captioned the video: "As the summer comes to an end, I cannot tell you what a relief it is to have finally completed my chemotherapy treatment.
"The last nine months have been incredibly tough for us as a family. Life as you know it can change in an instant and we have had to find a way to navigate the stormy waters and road unknown.
"The cancer journey is complex, scary and unpredictable for everyone, especially those closest to you.
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"With humility, it also brings you face to face with your own vulnerabilities in a way you have never considered before, and with that, a new perspective on everything.
"This time has above all reminded William and me to reflect and be grateful for the simple yet important things in life, which so many of us often take for granted. Of simply loving and being loved.
"Doing what I can to stay cancer free is now my focus. Although I have finished chemotherapy, my path to healing and full recovery is long and I must continue to take each day as it comes."
After sharing the video, one fan pointed out a beautiful detail, in which Kate can be seen holding a butterfly.
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"Holding a butterfly in your hands and letting it go symbolises themes of freedom and transformation," they wrote.
"Butterflies are commonly associated with change, growth and beauty due to their life cycle."
The insects are also thought to represent personal growth and protection, as well as hope and new beginnings.
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In the video, Kate explained she was now looking forward to resuming some of her duties, adding: "I am however looking forward to being back at work and undertaking a few more public engagements in the coming months when I can.
"Despite all that has gone before I enter this new phase of recovery with a renewed sense of hope and appreciation of life.
"William and I are so grateful for the support we have received and have drawn great strength from all those who are helping us at this time. Everyone’s kindness, empathy and compassion has been truly humbling.
"To all those who are continuing their own cancer journey - I remain with you, side by side, hand in hand. Out of darkness, can come light so let that light shine bright."
Topics: Kate Middleton, Royal Family