Prime purpose of this lecture is to present on Psychological Costs of Materialism. Here main focus on Diminished Happiness. Higher Materialism includes:Anxiety; Depression; Physical Symptoms; Unpleasant emotions and Drug & Alcohol Use. Lower Materialism includes: Self-actualization; Vitality; Life Satisfaction and Pleasant Emotions. The universe was not built for our happiness we have to make it happen: Optimal experiences involve control and mastery and Flow experiences relate to sex, work, friendship, sport, interests and lifelong learning.