National polls show that 9 out of 10 Americans believe in God and consider religion important in their lives. In October 16, 2017, the Pew Research Center reported that most U.S. adults now say it is not necessary to believe in God to be moral and have good values (56%), up from about half (49%) who expressed this view in 2011. This increase reflects the continued growth in the share of the population that has no religious affiliation, but it also is the result of changing attitudes among those who do identify with a religion, including white evangelical Protestants. The public's increased rejection of the idea that belief in God is necessary for morality is due, in large part, to the spike in the share of Americans who are religious "nones."
"Spiritual but not Religious," the SBNR movement in America was first named and delineated by author Sven Erlandsson in his 2000 book "Spiritual but not Religious." Spirituality places an emphasis upon the well being of the "mind-body-spirit", so "holistic" activities such as tai chi, reiki, and yoga are common within the SBNR movement. They believe in an afterlife, but not necessarily heaven or hell.