There are so many twists and turns in life, what should you do if you are ignorant and take the wrong path? I meet all kinds of people along the way. What should I do if I choose the wrong person? After a lifetime, I have no sense of time. I spend my whole life in ignorance. I can't tell whether it's good or bad. I'm just ignorant. If we were to do it again, what kind of world would we see if we tried to get rid of this fog barrier?