2. Mao said the Chinese are that "two ends are small and the middle is big" It means his supports and who are against him are few. Most people do not care.
3. Lin Biao said there seven big things for Chinese people. They are Chai2, rice, oil, salt, (soy) jam, vinegar, tea. The rest are not important.
4 Mao said without anyone, the earth still turn around. A lot of people believe it and know it is true at that time.
Both Mao and Lin knew that it is natural and no big deal for people, including themselves, to die. And a lot of people share this view as well. The key was 还比着悲痛. For many people, it was just a show.
Do you remember Zhang Chunqiao hugged Deng Yingchao when Zhou Enlai died. Just like that.