Catherine, Princess of Wales has urged people to find beauty in "change"

In the accompanying voiceover, the princess - who underwent cancer treatment last year - talked of finding purpose in "what matters most" and letting go of "what is no longer needed".

She said: "As the days grow shorter and the shadows grow longer, the energy of summer withdraws into autumn.

"This is a season for reflection and refinement. Trees shed their canopies in preparation for winter, just as we too learn to let go of what is no longer needed.

"Through greater awareness of our inner and outer worlds, we can find clarity and purpose in what matters most. Encouraging us to simply to pay attention and listen.

"With the turning of the seasons, mother nature teaches us there is beauty to be found in change, impermanence and in letting go. These are the natural cycles of life.

"Whilst the blossoms fall and the colours fade, the roots grow deeper, stronger. Let love be the root that holds us, the light that guides us, with hope through change. Endure."

The autumn video features Catherine, chef Gill Meller, and children from Farley Junior Academy in Luton, Bedfordshire, enjoying a cookout and bonfire in the Windsor Great Park estate.

The group of youngsters receive support at school from Go Beyond, a charity which offers access to nature and residential trips for young people living in difficult circumstances throughout the UK.

The short film also features footage from other locations around the UK, including Long Meadow Cider and Mallon Farm in Northern Ireland, which Catherine and her husband Prince William visited last month.

The clip was captioned on Instagram: "Autumn - a season of reflection, growth and deeper connection. Embrace the beauty found in change, as we prepare for winter's rest. C.(sic)"