I must recommend this one: 《题西林壁》 横看成岭侧成峰， 远近高低各不同。 不识庐山真面目， 只缘身在此山中。

That poem is well suited to this painting. You can also write your own too... :) Do it first in your native tongue and we can help you translate, polish... This way, you can express your feeling when you look at it.

Maybe this "I shall be telling this with a sigh Somewhere ages and ages hence: Two roads diverged in a wood, and I — I took the one less traveled by, And that has made all the difference." This is from The road not taken by Robert Frost.