Generally speaking, people will sigh when their lives are about to die. They are basically lamenting the passage of time, which also shows the smallness of human beings. In the long river of human history, a person's experience is just a drop of water in the vast sea, and a star in the vast starry sky is so insignificant, but it is also essential. As long as it is for your ideal goal, you have been working hard and believe that you are worthy of yourself and others, then this life.