OF THE CAUSES OF SORROW OR PAIN (FOUR ARTICLES)

We must now consider the causes of sorrow: under which head there are four points of inquiry:

(1) Whether sorrow is caused by the loss of a good or rather by the presence of an evil?

(2) Whether desire is a cause of sorrow?

(3) Whether the craving for unity is a cause of sorrow?

(4) Whether an irresistible power is a cause of sorrow?