What is the author's tone in the novel, To Rise Again at a Decent Hour?

The overall tone of the book is one of hope and Paul does eventually realize that he has to find happiness within himself rather than depending on an outside source. The journey to that discovery is one of chaos and confusion, much like the lives of many people who struggle to reach Paul's conclusion. There is no clear resolution at the end of the book as Paul learns that life is filled with change and that his own life will continue to evolve as he lives it. An important aspect of the tone is Paul's fatalism