Due to the popularity of this book, Hakham Yosef Hayim came to be known as "Ben Ish Hai", by which he is referred to by many today. The book is a collection of homilies he gave over two years discussing the weekly Torah portion. Each chapter begins with a mystical discussion, usually explaining how a Kabbalistic interpretation of a certain verse relates to a particular halakha, and then continuing to expound on that halakha with definitive rulings.