Discipline is developed. It is learned, cultivated, practiced and studied. In a game of volatile swings up and down it is critical to develop the discipline to curb the emotional volatility that easily accompanies money swings or the swings associated with apparently associated with luck. Learning to recognize poker as a game of skill in which luck plays a significant role is one step toward developing the discipline required to even out the emotional swings that so easily attach to the volatile nature of the game itself.