How to understand the ending of Yu Hua's " To Live ":" The youth goes wandering, the middle-aged wants to dig and hide, and the old becomes a monk "?

This sentence was the ending of Yu Hua's novel,"To Live", which expressed the pursuit and values of different stages of life. When they were young, people pursued freedom and independence, and liked to wander and explore the unknown. People in this period usually did not have too many family and social responsibilities, and they pursued self-realization and growth. In middle age, people began to reflect on their lives and values. They began to think about the meaning and value of life and explore the meaning and purpose of life. They might start to look for a goal and direction in life, or they might seek inner peace and redemption. In their later years, some people chose to give up the temptation of the secular world and turn to the exploration of their hearts and beliefs. They might choose to become monks or other religious people in pursuit of peace and salvation. This sentence expressed the pursuit and values of different people at different stages of life. People would pursue different goals and meanings at different times. This also reflects the uncertainty and impermanence of life. We need to adapt and adjust our attitudes and lifestyle in the process of constant change.