In the Japanese gardening tradition, the water is a symbol of life and purification, but can bear multiple meanings, depending on its manifestation: a calm lake can symbolize tranquility, meditation and interior harmony, while a lake with waves can mean exactly the opposite, restlessness and anxiety. A stream signifies the passing of the time and continuous changing...
But the most complex meaning is attributed to the waterfall: although the waterfall seems to be a physical object, unchanging and with a well-defined shape, the water flows continuously... that's why the waterfall is a a symbol of duality, impermanence and change.
Waterfall, Sengan-en, Kagoshima EXIF info:
Nikon Df
Lens: 24-70mm F/2.8G
Focal Length: 24mm
Aperture: F/5.6
Shutter Speed: 1/200s
ISO Sensitivity: ISO 800