A summary is the shorter version of the original text/ passage. It is the act or briefly restating the main points of the passage without jeopardizing the whole text.
In the given excerpt from Mary Shelley's "Frankenstein", the passage is about the monster's plea to his creator Victor Frankenstein. The passage contains his dilemma in being abhorred by everyone and how he felt. And the note given is a summarized version of the original text where the writer has given a rewritten passage that restates the main points, using his/ her own words.
