No Negative Thinking
It is recorded in a hadith that you should not do tit for tat. That means that you should not mete out the same treatment to others that you receive from them. The course of action that you should take is that if anyone harms you, you should still do good to him. (Sunan al-Tirmidhi, Hadith No. 2007)
Realization of God is attainable by those men and women who always engage in positive thinking. But experience shows that in the present world it is not always possible to have favourable circumstances. In such a situation, there is only one formula for positive thinking. And that means being good to others whether their behaviour to you is good or bad.
Realization of God elevates only that heart which is totally free from negative thinking; such realization will never enter a heart which is not free of hatred, anger, and vengefulness. Man lives in a world where unpleasant experiences are commonplace. This is a law of nature. In such a situation, the only way for one who aspires to realization of God is to develop the ability to convert negative experiences into positive experiences, that is, he must continue to engage in positive thinking even in unpleasant situations. He has to develop the kind of high thinking which enables him to stave off the evil influences of the environment. This is the capacity which enables man to continue his journey of God-realization uninterruptedly.