A teacher once told her students to make a list of people they hated. Each of the students made a list of names.
She then asked them to purchase potatoes from the market. The students were told to boil their potatoes, keep them in a plastic bag and to carry this bag around all the time during the day and place it beside their pillow while sleeping. They had to do this for at least one week. After the third day, the potatoes began to rot and give off a foul smell. By the fourth day, the students approached their teacher and said that the bags have become unbearable.
At this, the teacher replied, “Do you see it now? The people whom you hate are not affected by your hate. You carry it with you all the time and everywhere you go. The only person that your negative feelings affect are you, yourself. Forgive them and be free once more.”
It’s best to forgive and forget; grudges only weigh you down and lead to unhappiness and grief.