Simply, the element repeated is the redundancy of the characters' name.
<span>Papa says to stay inside the gate. Papa goes away for something. Little Daughter looks through the gate. Little Daughter picks flowers.
The redundancy of their names here creates an escalating rhythm. It builds up tension in the sentences. If you notice, the writer didn't use pronouns to refer the characters. He used proper nouns each sentence and successfully created a strong tension.
If he wrote: </span>Papa says to stay inside the gate. He goes away for something. Little Daughter looks through the gate. She picks flowers.
It loses the tension, rhythm, and power of the sentences as a whole.
The excess of their names here makes a raising rhythm. It develops strain in the sentences. The author didn't utilize pronouns to allude the characters. He utilized proper nouns, places or things each sentence and effectively made a solid pressure.
The narrator uses negative feelings when he looks at the House of Usher. He feels scared and that there is an anti-sublime qualities to the house. The tarn, the mist, the fissure running down the house, no traversal he had seen on his journey shows how away from reality this house is.
For the main reason that "it promoted sacrifice for the common good." the speech was commonly read during the Cultural Revolution. This speech was the primary political propaganda of Mao Zedong as a slogan during the dark times of the Chinese cultural history.