The present paper makes an attempt to examine how George Herbert Meade’s theory explains people’s use of symbols as a sense-making tool to elucidate the socialization process, role performance, identity, and meaning formation within the Igbo society to explain various aspects of human life in the novel Things Fall Apart. This study is significant as it deals with a character analysis of Okonkwo, to see how various roles of son, warrior, husband, father, and clansman are defined in Igbo culture during different phases of family and social life to clarify how Symbolic Interactionism has given a new impetus to see society, culture, psychology, and relationships. It argues that the physical setting is significant to human behavior and human actions can be interpreted by the critical analysis of cultural symbols and the way they are deployed. It concludes that human behavior is based upon assigning meanings and their symbolic interpretations of the objects that surround them. The SI analysis of the novel clearly indicates that Okonkwo’s self and meaning formation is built on perceptions of the reactions of his clansman and his self-concept functions to direct his behavior. The development of different roles changes role and behavior patterns. The internal and external happenings influence role performance, conflict, struggle and affect the nature, attitude, and self-image of Okonkwo. Moreover, it also affirms that the cultural symbols for honor, respect, and manliness, etc. are not fixed naturally rather these are the constructions of the mind and are given meaning through the interaction of the people.