An analysis of the disparity between faith and logic in today's world tours humanity's willingness to challenge religious-based belief systems throughout history, citing the biological origins of spirituality while warning readers that tolerance for fundamentalism must occur with an awareness of the modern world's capacity for violence.

For the millions of Americans who want spirituality without religion, Sam Harris's new book is a guide to meditation as a rational spiritual practice informed by neuroscience and psychology. Waking Up is for the 30 percent of Americans who follow no religion, but who suspect that Jesus, Buddha, Lao Tzu, Rumi, and the other saints and sages of history could not have all been epileptics, schizophrenics, or frauds. Throughout the book, Harris argues that there are important truths to be found in the experiences of such contemplatives -- and, therefore, that there is more to understanding reality than science and secular culture generally allow. Waking Up is part seeker's memoir and part exploration of the scientific underpinnings of spirituality

For the millions of Americans who want spirituality without religion, Sam Harris's new book is a guide to meditation as a rational spiritual practice informed by neuroscience and psychology. Waking Up is for the 30 percent of Americans who follow no religion, but who suspect that Jesus, Buddha, Lao Tzu, Rumi, and the other saints and sages of history could not have all been epileptics, schizophrenics, or frauds. Throughout the book, Harris argues that there are important truths to be found in the experiences of such contemplatives -- and, therefore, that there is more to understanding reality than science and secular culture generally allow. Waking Up is part seeker's memoir and part exploration of the scientific underpinnings of spirituality

From the new afterword by the author: Humanity has had a long fascination with blood sacrifice. In fact, it has been by no means uncommon for a child to be born into this world only to be patiently and lovingly reared by religious maniacs, who believe that the best way to keep the sun on its course or to ensure a rich harvest is to lead him by tender hand into a field or to a mountaintop and bury, butcher, or burn him alive as offering to an invisible God. The notion that Jesus Christ died for our sins and that his death constitutes a successful propitiation of a “loving” God is a direct and undisguised inheritance of the superstitious bloodletting that has plagued bewildered people throughout history. . .