The document discusses self-confidence and what causes a lack of self-confidence. It defines self-confidence as having a positive perception of oneself and one's abilities, while a lack of self-confidence involves self-doubt, inferiority, and feelings of being unloved. Negative life experiences, dwelling on failures, unrealistic expectations, and fear of failure can cause a lack of self-confidence. The document provides tips for increasing self-confidence such as thinking positively, setting realistic goals, rewarding accomplishments, and being assertive.