This book is meant to define and elaborate the concept of Religion. Various theories regarding the origin of Religion has been stated. Utilitarian aspect of religion is highlighted so as to create harmony among people belonging to different religions. The Non-Religious viewpoint and criticism of religion has also been given importance. It's an attempt to inform and make people aware of the phenomena of religion and irreligion both while highlighting the positive aspects of both non religious humanist worldview and religious ideologies.

The philosophy of religion is one of several very active branches of philosophy today, and the present series is designed both to consolidate the gains of the past and to direct attention upon the problems of the future. Between them these volumes will cover every aspect of the subject, introducing it to the reader in the state in which it is today, including its open ends and growing points. Thus the series is designed to be used as a comprehensive textbook for students. But it is also offered as a contribution to present-day discussion; and each author will accordingly go beyond the scope of an introduction to formulate his own position in the light of contemporary debates.

Over the past decade a strident public debate has arisen about the nature and origin of religions. Controversies include how exactly religion evolved, whether by individual or group selection, if it is adaptive, and if not, whether and how it is a side effect of evolution. This volume focuses on the issue of naturalizing religion: on the ways in which cognitive science and social sciences have treated religion as a natural phenomenon. It questions whether religious behaviour, institutions, and experiences can be explained in natural terms. The editor brings together some of the best published work on the definition of 'religion', intelligent design and the evolution of religion.

This volume promotes a pragmatic, anti-essentialist and anti-hegemonic approach to the problem of the definition of religion. It argues that definitions of religion are context-bound strategies for pursuing a variety of purposes, extra-academic as well as academic. Religions being immensely varied, complex and multi-functional phenomena, they need to be studied by several academic disciplines from many different perspectives. It is, therefore, legitimate and useful that many definitions of religions are developed. The volume has contributions from scholars in Philosophy of Religion, the Comparative Study of Religions, Anthropology of Religion, Sociology of Religion and Psychology of Religion. It has chapters on the polemics of defining religion in modern contexts, the history of the concept of religion, and the methodology of its definition; it includes several definition proposals.