Throughout the universe we keep finding certain numbers which seem to regulate and control the course of the world at apparently decisive points. Scientists have recognized in the meantime that life is only possible in environments whose limits are very narrowly defined. The author will show that our world has been created according to very simple mathematical numerical relationships. Mathematics supplies a really existing construction plan and is, therefore, the true basis of all natural sciences. In this book the author attempts to reconcile all religious, philosophical and scientific ideologies in one plausible synthesis. The key questions of human existence are discussed in an entertaining and exciting way.