An Ocean Without Shore is a study of Ibn Arabi, known in Islam as al-Shaykh al-Akbar, the Greatest Spiritual Master. In the introduction, Chodkiewicz provides a good deal of documentation for the often heard claim that Ibn Arabi has been the most influential thinker in Islam over the past seven hundred years. He shows that this has been true, not only among the intellectual elite, but also among the common believers. He explains why a few Muslims have considered Ibn al-Arabi the greatest heretic of Islam, while for many others he is Islam's greatest spiritual teacher.

In the main body of...