My Character Building Teacher had given me a project to write the names of the people we hate on a non-boiled raw potato, and put it inside a clear plastic, locked, and not to be opened until the project is finished. Everyday, we should take an observation of the potato and write it down and I found my potato to have water in the holes and the plastic is full of dew.

Question

My Character Building Teacher had given me a project to write the names of the people we hate on a non-boiled raw potato, and put it inside a clear plastic, locked, and not to be opened until the project is finished. Everyday, we should take an observation of the potato and write it down and I found my potato to have water in the holes and the plastic is full of dew. 
Some of my friends' potatoes are already so rotten that the names are not seen again.
The teachers told me to write the lesson that I can learn from this task.
Can you tell me what lesson that I could learn? Please, tell me as much as you can.
Thank you so much :) 
(Sorry if it's too long)

Writeacher · Answer

As time goes on and the potato rots, why do you think the names disappear?

Then apply this concept to your life. If you "lock away" the names of "people you hate" and go on with your life, no matter how it turns out, what do you think happens in your mind regarding those people?