Lust is a psychological force producing intense desire for something. Lust can take any form such as the lust for sexuality, money, or power. It can take such mundane forms as the lust for food as distinct from the need for food or lust for redolence, when one is lusting for a particular smell that brings back memories. It is similar to but distinguished from passion, in that passion propels individuals to achieve benevolent goals whilst lust does not.

वासना शारीरिक इच्छाओं के द्वारा मन में उत्पन्न होने वाली एक भावना है। कामवासना इसका एक प्रकार है।