Caigentan (Ts'ai-ken T'an)

There is an old saying:   The bamboo shadow cannot dust off the steps. 
The sun penetrates the pond leaving no trace on the water. 
Our Scholar says : 
Though the stream flows swiftly by, the scene is forever still. 
While the flowers are wilting rapidly, my mind is cool. 
Treats things this way and how at ease I would be.