Ben Ish Chai - Daat U'Tevunah (Machon He'arat Mordechai Edition)

In his introduction to this book, the Ben Ish Chai says: "I chose to collect and take from the holy book of our teacher (the Arizal)...the introductions to topics that constitute the roots of the true wisdom (Chochmat HaEmet), and I divided them into chapters. One who studies it should do so on a regular basis and review at it at least fifteen times (and then)...they will be remembered and organized in his heart...and then he can begin studying the book Etz Chaim."