Introduction One fundamental question that comes to one’s mind is why people sell illegal drugs. However, one must note that selling of illegal drugs is a human behavior. This is a behavior, which is socially unacceptable because illegal drugs have harmful effects on their users. Generally, there are motivations and thoughts, which drive such behaviors in people. Psychology should help us to understand why people engage in selling illegal drugs. In addition, one ought to understand the role of the environment in such cases. This is antisocial personality behavior and disregard for social norms, which starts from a person’s mind. The Situation of Selling Illegal Drugs Drugs are important in alleviating illnesses and discomfort in people. However, there are certain regulated drugs, which are harmful to users because they cause severe health problems and addiction. As a result, authorities have banned such drugs. Nevertheless, illegal drugs find their ways in the streets. The society is aware of the prevalence of selling of illegal drugs. Majorities who sell and abuse illegal drugs are mainly youths. Selling of illegal drugs is an act of antisocial behavior, which is socially unacceptable. Such people do not follow a set of laws, which provide order in society. Instead, they display behaviors, which do not conform to norms, and they tend to be aggressive and dishonest. The focus of individuals who sell drugs has been self-centered. The tendency to reject the expected behaviors in society originates from one’s own mind and motivations. People who sell drugs define laws, authorities, and establish their norms, which reflect criminal tendencies. Selling illegal drugs also make such people to be aggressive and repulsive toward others because selling of illegal drugs is deviant behavior in society. It is important to understand the role of the mind and environments and their impacts on people who sell drugs. From psychological perspectives, one can understand thought processes, motivations, and intentions of people who engage in selling illegal drugs. Selling illegal drugs is usually a copied behavior that may have environmental influences based on societal norms. At the same time, it would also be important to explore the role of hereditary in such cases. Analysis of the social, cultural, and spiritual influences on the individual’s behavior and his or her ethics Social influences have significant impacts on behaviors of individuals who sell drugs. Such influences affect one’s thoughts, behaviors, and actions. Society and social groups are responsible for shaping illegal activities of people who engage in selling illegal drugs. In most cases, disorganized societies are responsible for antisocial behaviors among individuals. People who engage in selling illegal drugs could be from broken homes, crime zones, and unstable families, which highly influence their social behaviors and criminal conducts. Social groups may introduce a person to a culture of selling illegal drugs. A bad culture in which one grows up has a critical role in the development of a person’s antisocial behaviors and deviant tendencies like selling illegal drugs. For instance, if one associates with a bad company, it would influence him or her, and the persona may learn the group’s undesired behaviors. People who sell illegal drugs may also have spiritual views and clai