雲過知禪意 泉流見道心(Kumo Sugite Zen'i o Shiri, Izumi Nagarete Doshin o Miru)

‘As clouds pass, one understands the spirit of Zen; as the spring flows, one perceives the mind of the Way.’ Passing clouds may reveal Zen insight, while water flowing beneath one's feet may awaken the aspiration for enlightenment. (Han, Wei, and Six Dynasties; attributed in the source to 莊宝書) Zen teacher’s blog