Nature has a secret power to make us healthier and happier. Nature is vital to our well-being. Immersion in nature is exceptionally healing - it is the therapist. There is a robust body of research out there explaining the endless ways regular time in a natural environment phsyiologically and psychologically improves human health. You intuitively already know this. This is a reminder to do it daily.
Go for a walk or sit in a quiet beautiful place.
Listen to the soundscape, admire the sky - the colours, the clouds, the movement. Feel the breeze. Take in the smells, the tastes. Look for the beauty all around you. Take it all in. Make it more immersive and take off your shoes, walk barefoot. Avoid just focusing on it visually.