Improvement in your overall mood. Positive thinking leads to states of calm, peace, joy, happiness, vibrant energy and optimism. Positive thinking provokes smiles.
Physical effects: several studies have linked positive thinking and health, and have shown that diseases can even be healed through the practice of positive thinking.
In "You can heal your life" Louise Hay gives practical advice and affirmations on positive thinking to heal a number of diseases.
Allow abundance and serendipity in our lives. A positive attitude maintained through positive thinking brings about the events and the people that will help us achieve our goals.