Since the middle/ end of 1993 I have been grappling intensively with questions about our existence. This book is the result of my long-term study, with which I have tried to inspect our current worldview - the materialistic worldview. It shows that the sciences have come up with answers that question their own assumptions and ideas about this world. E.g. the world-famous physicist Stephen W. Hawking said that it is not really possible for physics to clarify whether the material world is a real world. According to the latest findings in physics, the material world can also be an imaginary world. I'm investigating this question in detail and come to the conclusion that we need a new worldview. This is the spiritual worldview. This new worldview clearly states that there is a non-material spirit that is responsible for the material world. What this means for each and every one of us is revealed in this study.