Daily affirmations train your mind daily to think in a positive way, so that the mind adopts that way of thinking. The mind starts changing your behaviour to match your new thinking. Positive changes start happening in your life.
Visualisation activates the power of your thoughts. When you take charge of your thoughts, you take charge of your life.
By combining your thinking and visualising with positive emotions, you intensify the whole process.
This motivational video of Powerful Affirmations inspires me every day.