The Psychology of Slave Morality

The effects of the new wave of slave morality become apparent in the psychological mechanisms behind its Christian followers. Nietzsche explains the evident conflict that now appears between the new moral system and natural reality. Christianity glorifies everything that is being weak and under-confident, but this only affirms the position of the slave. In order to feel superior over their previous masters, the slaves now have to find a way of achieving power, passively. They invent the notion of pity.
Nietzsche examines pity and pitiful thinking from a psychological perspective: the individual, who is weak, naturally cannot beat his master - unless he invents the theory that the master actually is the weak party. The slave therefore claims to pity his master, because he's not devoted to the value system of slave morality, which says that only meek people with meek impulses are rewarded. Thus he creates the illusion of being in a superior position to his master, while at the same time feeling good about it. And the only way for the master to be loyal to the God of the slaves that supposedly enforces this system is to accept his inferiority and join hands with the slaves in equality.
How could the masters give in to all of this? Nietzsche has several explanations to why things escalated as they did. The flaws and inherent weaknesses of the human individual are vulnerable to psychological manipulation. For instance, when we do something that we inherently think is wrong, such as killing a person, we feel bad about it. It is our human conscience that is speaking, informing us of a conflict between our actions and our moral viewpoints. This means that what we commonly refer to as having a "bad conscience," really is a moral perception of an event and not something objective or absolute. In other words: if you establish a new moral perception of what is "right" and "wrong," you can actually manipulate people around you into feeling bad about things defined as morally incorrect.