In Occult Diseases: A Review of Unbalance, Manly P. Hall turns his penetrating insight toward the hidden roots of human suffering. More than a study of physical or mental illness, this rare essay—originally published in The All-Seeing Eye—investigates the spiritual and psychological disorders that arise when harmony is broken between the soul, mind, and body. Hall reveals how ignorance, selfishness, and emotional extremes generate destructive vibrations that can manifest as disease, imbalance, and inner decay. He outlines not only the causes of occult affliction but also the principles of restoration: discipline, clarity, virtue, and alignment with higher truth.

This is not a medical manual—it is a guide for the soul's hygiene.