After all, friendship can add a major dose of joy, happiness, fulfillment and love to your life. And it’s not just important when you are a child—friendship is a crucial part of a balanced, happy life at every age. As Psychology Today reports, according to author Carlin Flora in her book, Friendfluence (a word she made up to describe the important impact friends have on our lives), “Friendfluence is the powerful and often unappreciated role that friends—past and present—play in determining our sense of self and the direction of our lives.”