Certain religious behaviours clearly reduce biological fitness. These behaviours include celibacy along with various forms of asceticism, and rituals that harm the performer. Such behaviours are found in widely different cultures. How is this possible? This book shows that these behaviours (as is religion in general) are by-products of features of the human mind whose evolutionary fitness is beyond doubt and explores those features. Which are those features? This book proposes a twofold answer. It draws attention to the layered nature of human consciousness, in which different manners of experience are superimposed on each other. This goes a long way toward accounting for the universal religious belief in some kind of transcendental world, a "higher" reality, different from "ordinary" reality. The layering of consciousness comes about in childhood and gains in prominence with the acquisition of a first language, which is the second feature highlighted in this book. Together, these features explain a variety of "normal" religious behaviours and beliefs, and account for the possibility of mystical experience. They also explain the occurrence of behaviours that do not augment evolutionary fitness.

How we feel is as vital to our survival as how we think. This claim, based on the premise that emotions are largely adaptive, serves as the organizing theme of Why We Need Religion. This book is a novel pathway in a well-trodden field of religious studies and philosophy of religion. Stephen Asma argues that, like art, religion has direct access to our emotional lives in ways that science does not. Yes, science can give us emotional feelings of wonder and the sublime--we can feel the sacred depths of nature--but there are many forms of human suffering and vulnerability that are beyond the reach of help from science. Different emotional stresses require different kinds of rescue. Unlike secular authors who praise religion's ethical and civilizing function, Asma argues that its core value lies in its emotionally therapeutic power. No theorist of religion has failed to notice the importance of emotions in spiritual and ritual life, but truly systematic research has only recently delivered concrete data on the neurology, psychology, and anthropology of the emotional systems. This very recent "affective turn" has begun to map out a powerful territory of embodied cognition. Why We Need Religion incorporates new data from these affective sciences into the philosophy of religion. It goes on to describe the way in which religion manages those systems--rage, play, lust, care, grief, and so on. Finally, it argues that religion is still the best cultural apparatus for doing this adaptive work. In short, the book is a Darwinian defense of religious emotions and the cultural systems that manage them.

Based on groundbreaking Barna Group research, unChristian uncovers the negative perceptions young people have of Christianity and explores what can be done to reverse them.

Why it's wrong to single out religious liberty for special legal protections This provocative book addresses one of the most enduring puzzles in political philosophy and constitutional theory—why is religion singled out for preferential treatment in both law and public discourse? Why are religious obligations that conflict with the law accorded special toleration while other obligations of conscience are not? In Why Tolerate Religion?, Brian Leiter shows why our reasons for tolerating religion are not specific to religion but apply to all claims of conscience, and why a government committed to liberty of conscience is not required by the principle of toleration to grant exemptions to laws that promote the general welfare.

In A Need for Religion: Insecurity and Religiosity in the Contemporary World Francesco Molteni analyses the decline in religiosity observed in developed countries in relation to the diminished need for reassurance and support that religion provides.

This book journeys to the heart of religious extremism and analyzes the nature of religious militancy. Kressel, who has spent decades researching genocide, terrorism, and anti-Semitism, brings to bear the insights of psychology and social science on this significant and critical problem.