Motivation

Motivation is derived from the Latin verb movere, 'to move'.
In essence, motivation is the internal impulse to take action. It is the feeling triggered within that compels you to do something. From brushing your teeth in the morning to following through on your lifelong goals and dreams, motivation is at the root of every action you take.
Without motivation, the progress of the world would come to a grinding stop. On a more personal level, progress within your own life would be impossible without the motivation to do something about what you wanted. Your health, school work, hobbies, relationships - nothing would move forward without an internal drive.
Motivation is an extremely powerful tool, not just in sport but also throughout every aspect of life: the ability to get yourself to take action is the single greatest skill in life.