[Carl Jung on “Affect” Lexicon]
Emotional reactions marked by physical symptoms and disturbances in thinking. (See also complex and feeling.)
Affect is invariably a sign that a complex has been activated.
Affects occur usually where adaptation is weakest, and at the same time they reveal the reason for its weakness, namely a certain degree of inferiority and the existence of a lower level of personality.
On this lower level with its uncontrolled or scarcely controlled emotions one . . . [is] singularly incapable of moral judgment. ~Carl Jung, “The Shadow,” Aion, CW 9ii, par. 15.