Many people say that the number pi is generally useless, I want to say that if you don’t understand, don’t be blind, BB, the number pi has many functions. For example, pi can make many members feel a sense of dreaminess, this is a very key point! It is their spiritual food, and it is motivation for them to work hard to live. A glance at PI makes you feel rested and full of energy! PI gives them a lot of anticipation and hope for the future!