This thinker emphasized the importance of the “relaxed field” of play in a book that draws on Merlin Donald to analyze the evolution of the title phenomenon since the Paleolithic. This author wrote an essay declaring the Vietnam War the “Third Time of Trial” after the sacrificial death of the Civil War and the Exodus narrative of the Revolution. This thinker was the lead author of a book that quotes a nurse who imagines herself as Christ and advocates “just trying to love yourself” in defining her “own Sheilaism.” In a 1967 Daedalus essay, this lead author of Habits of the Heart discussed (10[1])the invocation of a generic God in John F. Kennedy’s inaugural address and discussed Memorial Day as part of a sacred calendar. For 10 points, name this sociologist of religion who wrote about reverence for national symbols like the words of the founding fathers in his essay “Civil Religion in America.” ■END■