Title and description based on researched data.

"The bestselling author of War and The Perfect Storm takes readers on an investigation of how we overcome trauma and seek something bigger than ourselves. We have a strong instinct to belong to small groups defined by clear purpose and understanding--"tribes." This tribal connection has been largely lost in modern society, but regaining it may be the key to our psychological survival. Decades before the American Revolution, Benjamin Franklin lamented that English settlers were constantly fleeing over to the Indians-but Indians almost never did the same. Tribal society has been exerting an almost gravitational pull on Westerners for hundreds of years, and the reason lies deep in our evolutionary past as a communal species..."--provided by the publisher.