I think you are talking about a soliloquy.
To organize the speech and give it a structure the audience can easily follow
they are mostly extended families depending on how large the family is.
They had extended families to help do household chores and farm
The First Amendment of the United States Constitution protects the right to freedom of religion and freedom of expression from government interference. Freedom of expression consists of the rights to freedom of speech, press, assembly and to petition the government for a redress of grievances, and the implied rights of association and belief. The Supreme Court tells us how far these rights may be extended.
It makes the speech sound more poetic
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I think you are talking about a soliloquy.
No, it is not. It is a noun, a language term for speech that is deliberately ambiguous, confusing, or evasive. Sometimes the term is extended to euphemisms (or "spin").
A metaphor is a figure of speech in which two dissimilar things are used to make a comparison, but an extended metaphor is a comparison that is continuously being made throughout a written work (more commonly in poetry).
Epic can be a noun and an adjective. Noun: An extended poem celebrating the feats of a hero. Adjective: Relating to an epic.
To organize the speech and give it a structure the audience can easily follow
The whole speech is one big extended metaphor. "All the world's a stage . . .", well like a stage anyway. Which is why this is a metaphor.
will it be extended
Freedom of Speech is found in the First Amendment to the Constitution of the United States: Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people to assemble, and to petition the Government for a redress of grievances. The First Amendment prevents the federal government from arbitrarily and unnecessarily interfering with an individuals speech. Through the Due Process Clause of the Fourteenth Amendment, this protection is extended to prevent similar actions by state governments.
A extended episode.
I extended my arm to reach the paper on the floor. I extended my face and lips to kiss him. The students extended their condolences to their classmate's mother.