It is the same principle as washing dirty clothes - the more you clean the dirt away, the more it goes back to its original state. A piece of paper, which has been scribbled on, gets cleaner the more the scribbling is erased. Enlightenment is the same as knowing the true state of the paper once it is clean.
Woo Myung, Stop Living In This Land, Go To The Everlasting World Of Happiness, Live There Forever
enlightenment, truth