Descartes doubted the existence of things, but when he woke up from a dream, he made a breakthrough: thinking is alive.
It can be said that whether life needs thinking, speaking and thinking are prerequisites for life, but people don't realize it, so I will take the former as an example.
People learn to think from birth, but. Think about it, where did it come from and where did the world come from? With the growth of age, there should be more and more ideas, but some ideas about material life have been answered by parents, and some ideas about spiritual life have been stopped by parents and other elders. Thinking less and less, the idea of "growing up", or aging in infancy, becomes as active as childhood.
Thinking about material life, most people think about daily necessities, the relationship with class, how to get along with parents and children, how to earn more money, and how to think about "things outside the body" is the foundation of survival, but animals, as a part of life, will also "think" and "live".
Thinking about spiritual life, most people also depend on a certain religion or a certain philosophical school. Philosophers' thoughts are alive, philosophers are alive, but people are fleeting in history. To think, the meaning of not coming into this world is life, to perceive the meaning of life, just like going home after watching a movie and writing a review. Coming into this world is like coming to a movie studio, being both an actor and a bystander.
Survival is the task of coming into this world, and thinking is the purpose. Thinking, how can life be complete?