What is the meaning of motivation?

noun

• The psychological feature that arouses an organism to action toward a desired goal; the reason for the action; that which gives purpose and direction to behavior.
  • usage: "we did not understand his motivation"; "he acted with the best of motives"
  • synonyms: motive, need
• The condition of being motivated.
  • usage: "his motivation was at a high level"
• The act of motivating; providing incentive.
  • synonyms: motivating