Life addition and subtraction, what is added? How much less?

Thank you for inviting me! The topic is very big and there is no accurate answer. People of different ages have different feelings and understandings, and everyone's views on the pattern and realm vary from person to person. Some old people are ashamed to sigh that life is too short to understand. Back to personal practice: what life needs to add is nothing more than knowledge, insight, ability and education, in order to be detached from things. What you have to do is your own shortcomings and problems. There must be a teacher for a threesome, and three rescues a day. When I find my own shortcomings, I will learn while summing up and make it perfect. Life is limited, knowledge is limited, learning is limited, slowly sharpen your learning, come on. Typing by hand is not easy. I hope it can be adopted as a thank you! !