Travelling over the world one can see humans on all levels, from the highest and purest to the lowest of the low. The attribute of mercy is very deep. For each of the attributes of mercy and justice, what happens to a person if he sins or when he does a mitzvah? A sin is fundamentally saying that yes, G-d is bigger than me and outside of me, but I can also do things. It is as if you are saying that you are the same as G-d. We see the world through two lenses, through spirituality and physicality. Before his sin, Adam saw the world through both lenses at the same time. Spirituality and physicality were not separated. After he sinned, however, the physicality lens remained clear and the spirituality lens had a filter put over it and became clouded. What did G-d do with our sins in order to keep us from being annihilated from them? Our sins were taken out of us and given their own being and self-awareness. The sin then begins to suck your energy out of you to try to take your kedusha and become alive himself. Ultimately he is annihilated in this way. If it were to stay in you, it would lower your madrega. The fact that it is outside of you, it does not become part of you and it is annihilated. Unfortunately, this introduces evil into the world and causes great suffering. Suffering is G-d's way of saving us by destroying our sins on their own, without affecting our madrega. But what happens if your mitzva becomes a malach, on the other hand? This is not a good thing, either. Keeping your mitzvot as part of you helps you; having them separate from you and become malachim is actually a way of punishing you.