Insubordination of man’s desires to the dictates of reason, and the propensity of human nature to sin as a result of original sin. More commonly, it refers to the spontaneous movement of the sensitive appetites toward whatever the imagination portrays as pleasant and away from whatever it portrays as painful. However, concupiscence also includes the unruly desires of the will, such as pride, ambition, and envy.
Concupiscence of the Eyes
Unwholesome curiosity and an inordinate love of this world’s goods. The first consists in an unreasonable desire to see, hear and know what is harmful to one’s virtue, inconsistent with one’s state in life, or detrimental to higher duties. As an inordinate love of money, it is the desire to acquire material possessions irrespective of the means employed, or merely to satisfy one’s ambitions, or to nurture one’s pride.
Concupiscence of the Flesh
The inordinate love of sensual pleasure, to which fallen man is naturally prone. It is inordinate when pleasure is sought as an end in itself and apart from its divinely intended purpose: to facilitate the practice of virtue and satisfy one’s legitimate desires.