In the Sefirot of MaH are rooted all aspects of the repair – to repair these defects. They are parallel: the repairs of MaH come to repair the damage of BaN. It was through this arrangement that the joining of MaH and BaN was brought about. For the above-mentioned defects require precisely those repairs that have the power to rectify these very defects.
For the sake of the required governmental order... In other words, in order to produce a governmental order based on the required principle of reward and punishment to make a place for free will...it is necessary for every level to be constructed out of both of them. For every level has a corresponding level of service on the part of man, and man’s whole service is based on free will. Wherever there is choice, there is the possibility of damage and repair, reward and punishment. This is why every level must be constructed out of both of them. Then all aspects of evil will exist in that level through the side of BaN within it and all aspects of good through the side of MaH.