"Not everything you want to forget can be forgotten. There are generally three types of things in the human brain that cannot be erased: things that must be forgotten, things that must be remembered, and things that even you yourself don't know how to forget.
The first type, the more you need to forget, the deeper it becomes etched in your memory, and it can even drive people mad. Meanwhile, the second type, the things that need to be forgotten, are often quickly erased by many, but the most vexing to deal with are those of the third kind. The more they are ignored, the deeper they hide in the corners of the mind, springing out unexpectedly to strike a heavy blow.
If Zen cultivation could erase all these, Ye Tian would truly be at ease.
