A “flip,” writes Jeffrey J. Kripal, is “a reversal of perspective,” “a new real,” often born of an extreme, life-changing experience. The Flip is Kripal’s ambitious, visionary program for unifying the sciences and the humanities to expand our minds, open our hearts, and negotiate a peaceful resolution to the culture wars. Combining accounts of rationalists’ spiritual awakenings and consciousness explorations by philosophers, neuroscientists, and mystics within a framework of the history of science and religion, Kripal compellingly signals a path to mending our fractured world.