The document discusses taking charge of one's own happiness. It explains that while we may want to make others happy, we ultimately do not have control over their emotions and trying to control others' happiness can make us unhappy. It recommends focusing instead on our own happiness and letting that positively influence others. The document introduces neuro-linguistic programming (NLP) as a method to gain control over one's emotions and achieve goals using principles like knowing your desired outcome, taking actions consistent with that outcome, developing sensory awareness, practicing flexibility, and adopting a physiology of success. NLP teaches strategies to consistently produce desired results in life.