Each of their book’s case histories, chosen from several dozen quantum change experiences, share many but not all of the following characteristics: ineffability, revelation, transience of the original experience (although the effects last for decades), passivity, unity with the cosmos, transcendence, awe, joy-love-peace, and distinctiveness. Such epiphanies and spiritual insights, of course, are common after mind-altering drugs, evangelical religious conversion, and temporal lobe seizures. They are also common in reports of mystical, "white light," near-death, or "alien abduction" experiences. But the reports cited in Quantum Change are different for three reasons. First, unlike the authors of most previous reports, Miller and C’de Baca are atheoretical in their discussion of the commonalities inherent in such epiphanies. Second, they try to document the profound and lasting effects of such experiences. Third, their 52 reports were gleaned not from a specialized setting (e.g., hospital recovery rooms or lives of saints or epilepsy clinics) but from an advertisement in an Albuquerque newspaper "asking for volunteers who have been transformed in a relatively short period of time—who have had a deep shift in core values, feelings, attitudes or actions" (4, p. 259).