This text is a welcome addition to the Islamic English as it takes a unique approach to the subject. There are many of this brief treatise, Ibn Taymiyah, systematically dissects the primary role of the heart in the life of a true Muslim. After discussing the heart's purpose and function, the author discusses the prominence given to the heart in all affairs by Allah and His Prophet (pbuh) in the various texts of the Qur'an and Sunnah. He then goes on to identify the right of the heart in relationship to Allah; remeberance and consciousness of its Lord. Ibn Taymiyyah also categorized the various types of the hearts that exist relative to their states and conditions and concluded his treatise with the worst state for the heart to be in, lost, along with advice on how to avoid it. Dr. Bilal Philips has added an extensive commentary referencing verses and tranditional and further elucidating the deep meaning alluded to by the author, making the final text a very enjoyable inspiring read.