In this foreword to the original edition, Fr. Tissot wrote of the Interior Life: Is is just that very simplicity, that irresistible logic of argument and amazing wealth of scriptural corroboration, which I have found so entrancing. It is rare in our decadent age to meet with securing the intellect, winning it over by reason and faith, and forcing it to direct the will towards duty and perfection. So, unintentionally it would seem, yet in the most logical way possible, this book traces a path from the level of ascetics to the safest and most subtle heights of mysticism.