By using a flashback, a writer can insert past events into the narrative in order to provide further context. the four main ways to employ a flashback are:

In literature, a flashback is an event in which a character remembers an earlier event that happened before the current point in time of the story.

Types of flashbacks are:

the way you did it is okay (not really the best) but it could use a little work.

explanation:

dreams can say a lot about the personalities,thoughts, feelings, and intentions of people, what exactly do dreams mean? are the dreams we have   a result of our thinking process or are they connected to our hidden desires? facts and fiction will be used to uncover the truth behind our dreams.

the excerpt from chapter 2 of "animal farm", by george orwell that is an example of foreshadowing is "these three (snowball, napoleon, and squealer) had elaborated old major's teachings into a complete system of thought to which they gave the name of animalism." animal farm is an allegory of how czarist russia developed into communist russia with all its corruption. old major's teachings represent marx's theories turned into communism, animalism, by the three pigs. this foreshadows the oppression and corruption that will follow this revolt.