Humans share a foundation based on the theories and principles of biology and physiology. There are variations and alterations, but nevertheless it's a foundation. Layers are added to that foundation and take shape as we grow and mature, responding to both internal and external influences. For instance, what molds a personality? Is personality a result of environment or genetics? Or is it a result of both? What other major events, people, or behaviors might influence your personality? There are abstract layers too. What kind of mental state might you develop? What cognitive abilities might you master? And what prejudices might you cultivate? How might these be influenced by society? Combined, all of these layers influence our ability to build healthy relationships. Gaining an in-depth understanding about how relationships influence your development and how you influence others equips you with powerful tools to foster a healthy life and work environment.