What is symbolized by the repeated incidences of images of blood, sheep, and darkness in the tragedy of macbeth

The blood symbolizes murder and death, the darkness symbolizes evil, like murder. It can also symbolizes good and evil, guilt and innocence. The sleep symbolizes innocence, purity, the peace of mind.

the article is needed to answer the question from the oddessey

quite an interesting way to teach topic sentences, because the answer to this question is the best definition of a topic sentence that one can present, it is as if answering the questions taught you how to do it, this is some real teaching, it is terribly well-done.

the topic sentence in this paragraph is:

topic sentences writers stay on track and keep a paragraph from becoming an aimless collection of sentences about an idea.

which incidentally tells you what a topic sentence should be.