Place a ball of clear, but internally fractured glass (like a giant fried marble) in one of those fountains with a rolling ball atop a water basin. Put a bright focused (laser) light underneath. Watch the erratic light patterns emitted…
I found out more info on the venerable Li Ching-Yun. He lived for 256 years, died in 1930, and had 14 wives. His longevitiy is attributed to Gotu Kola. essay on longevity recipe for tea translated teachings