In the universe space of Universe, life is like a Canvas, you need to render, you have to find a locale, choose TransformGroup Shape on it, while having someone else's transformgroup on other BranchGroup, support them to review you ViewPlatform, so the Screen visible on Canva is shocked, so your rendering system is constructed in this way. In fact, any angle of TransformGroup is variable. If your past is very unsatisfactory, then try to change, at the same time, others' viewplatform may also change. . . . . . I remembered a sentence to Teacher Java's teacher in class: "Life is Just A Field of Newly Fallen Snow, and where you choose to Walk Every Step will be shown." Yes, life is like a snow. White canvas, each step you choose will leave footprints above.