Taking care of the big tree is my job, If the big tree is wrong, If the big tree hurts itself, I want to tell it. Big tree! The name is not a cold code, The name is a warm person, Please do remember. If the big tree forgot, I will remind it again. This is my job. Is the life meaningful? What is it? Why is that answer? Does the meaning of the life have the last answer? Is there the answer applicable to all people? After entering the junior high school, the author thought deeply, studied hard, played strenuously, even took the idle time seriously. Step by step, the author found answers. He found an answer after 1000 steps, and another answer after 10000 steps. New self by new self, the author saw the color of the heart finally. The author has seen the last answer.