Why can we live in this world?

Life is not mysterious. Bioscience has proved this idea. That is tohouse Inflatable Tent say: life must obey natural laws. The basic natural law is what we get equals what we give. If we want to live, we need neccesary things to live. Since what we get equals what we give, if we get something from this world, we will give something else to this world. We are living in this world means that we are helping this world. Chinese can live in U.S, because Chinese are helping U.S! We can live in this world, because we are helping this world! To live in this world means to help this world! Just like if anny marry me, she will be living in our family. That means she is helping our family. Another example: Many Chinese are living in U.S. Why U.S allow these Chinese living in U.S? Because these Chinese are helping U.S! If thesefor sale Inflatable Arch Chinese died, they can not help U.S anymore. Only they are living in U.S can they help U.S! Only we are living in this world, can we help this world. Now people can see: we are living in this world means that we are helping this world! If you died, If you leave this world, that means you can not help this world anymore!