In Nichiren Buddhism, we are encouraged to chant Nam-myoho-renge-kyo for the happiness of those who—for whatever reason—displease, anger or even hurt us.

Buddhism Day by Day

Wisdom for Modern Life by Daisaku Ikeda
Wednesday, August 14, 2013:

 

In Nichiren Buddhism, we are encouraged to chant Nam-myoho-renge-kyo for the happiness of those who—for whatever reason—displease, anger or even hurt us. Often this is not easy. But, inevitably, we come to see the better side of most people.