Motivation refers to the innate or acquired drive that stimulates behavior, and that may be negatively originated to solve or avoid a problem (for example) or positively originate for sensory gratification or social approval.
It is the intention of achieving a goal, leading to goal-directed behavior. Motivation is likewise defined as internal processes that initiate, sustain, and direct activities; wants, needs, and other psychological processes that energize behavior and thereby determine its forms, intensity, and duration.