One must go deeper into the Law of Karma and understand that the things people did to him was because he did similar things to others, in this life or in other lives. So the Law of Karma tolerated others to hurt him, or to “enlighten him.” and put him on the right track of living.
By thinking along these lines, you can minimize the tension and release those images from your mind – images you were holding full of hatred and anger, constantly wasting time and energy, and poisoning all your nature through a reaction against them charged with irritation.
Nothing would happen to you if you did not plant the seeds in the present and in the past.
But how to forgive yourself if you were the sower of these seeds of unhappiness that you are reaping now? The true approach to this problem is that it was not the real, conscious You who sowed those seeds but your personality who was not aware and awake. Your past lower self, activated by desire and blind urges and drives of the personality, did these things. Because you were more mechanical, you responded to the desires, malice, hatred, and fears of the environment and were used as tools by them.
-Torkom Saraydarian
Karma & Reincarnation