The movie Spring, Summer, Fall, Winter... and Spring is full of symbolism, and I searched for them, and I found many of the answers. There are three writings that I am curious about their meaning. I don't know whether they were written in Korean or Japanese.
From minutes 39:20 to 39:45 the master writes something with water on the stone, but I don't know the meaning of the writings. Whatever they are, they are probably referring to futile work. You can see the images here.
When the master sits on the boat before his death, he covers his eyes his mouth with some writings which I do not know.
Also, in another scene, he writes some sutras [Heart Sutra] on the monastery deck, for which again I do not have any idea.
What is the translation of those scentences?