Article continues below advertisementKate Middleton is reflecting on the "healing" power of Mother Nature on her 44th birthday.In a video shared to Instagram on Friday, January 9, the Princess of Wales talks about embracing "coldest, darkest season" as she's seen taking a serene stroll.At the top of the video message, she tells her followers, "Winter has a way of bringing us stillness, patience and quiet consideration. The stream slows just enough for us to see our own reflection, to discover the deepest parts of ourselves alongside the whispers and the pulse of every living thing.