In this episode, we reviewed a book, namely "Sustenance of the Soul: The Cognitive Behavior Therapy of A Ninth Century Physician by Abu Zayd al-Balkhi." Such an amazing book due to the fact that it was published in the 9th century. Essentially, we discussed about (i) the symptoms and treatments of mental illness; (ii) the advice on preventive measures that the author shared in this book in order to return our body and soul to their natural healthy state; (iii) understanding the human condition and the medical nature of the human emotional state; (iv) the author insights on human psychopathology as well as diagnoses of psychological ailments including stress, depression, fear and anxiety together with their treatment by cognitive behavior therapy; and (v) most importantly, the incorporation of a greater dimension by including the soul and the worship of God.