Unless you are familiar with Geez script, this will be like a book about calculus to someone still learning his tables. Rough as it looks, it embodies a sophisticated body of knowledge, and is testimony to a craft, that of foretelling the future, which in our days is largely in the hands of charlatans and believed by the gullible. There are traditions that have investigated this area, and how to do it, and it would be a mistake to treat it as mere superstition. Whether you want to believe its findings or not is another question. As a general rule-of-thumb I would say believing in anything is a mistake.