Complex-free soul is one which is free of all forms of negative thinking – prejudice, hatred, enmity etc. He who is able to free his mind of such thoughts is complex free. To make one free is not a mysterious formula, it depends on the act of introspection and contemplation. The following verse in the Quran, An nafsul mutmaiynna (89:27) This verse says how man becomes complex-free. If God gives favour to man, he thinks he is superior. On the other hand, when God withhold something which man has wanted he thinks he has been let down [89:15-16]. Both thinking are wrong. Man should be able to acquit him of both these thinking, only then will he be complex free.