This paper investigates changes in belief and their evolution in relation to the paradigm of cultural evolution. It underlines the interaction of the environmental factor with the social dynamic. The model proposed herein is extremely widespread and involves the creation, maintenance, and diffusion of beliefs that afford a perspective on how such processes influence individual and collective psychological constructs. By synthesizing theories in the fields of biology, anthropology, and psychology, this research will argue that cultural evolution is one key mechanism able to explain both diversity and variability in human belief. The examination suggests that beliefs cannot be cast solely as some sort of passive variant of personal cognition; instead, they are actively generated by cultural dynamics and social learning techniques such as imitation and instruction. It is a book that places more emphasis on the role of political ideology in accepting scientific evidence and shows how directed reasoning leads to the perpetuation of noxious beliefs. It then investigates transfer biases supporting the reproduction of cultural traits across successive generations, hence affecting social structure and any effort of cooperation. This may lead to a nuanced grasp of how beliefs can be advantageous or disastrous, considering the prevailing social structures and ecology within which they live. Based on the wealth of research regarding under what circumstances beliefs arise and spread, this paper examines from a critical perspective psychological processes of belief systems and what they might portend for human behavior and social organization.