For centuries theologians used the term “libido” to refer to the largely evil element of desire. During the 19th century A. Moll (1862–1939) introduced it to the field of medicine, and S. Freud (1856–1939) eventually made it the central concept in his doctrine of desire (Psychoanalysis). Freud distinguished between the source, partially from impulses in erogenous zones in the body, and the goal, a release of libidinous energy, though with a possible switch from activity to passivity. The object of libido is a variable entity that constitutes what Freud called the destinies…