The "scab" he talks about is his psychological scab which brings him into his own world of viewing things with clear perception that other people can't see. He sees the "shadow" behind everyone, everyone's true intentions (the will to power) and it poisons his former image of "beauty" to the point where he hates life.
The "scab" he talks about is his psychological scab which brings him into his own world of viewing things with clear perception that other people can't see. He sees the "shadow" behind everyone, everyone's true intentions (the will to power) and it poisons his former image of "beauty" to the point where he hates life.