There are several useful definitions of a cult. Here is a selection:
First, from Janja Lalich, Ph.D.: A cult can be either a sharply-bounded social group or a diffusely-bounded social movement held together through shared commitment to a charismatic leader. It upholds a transcendent belief system (often but not always religious in nature) that includes a call for a personal transformation. It also requires a high level of personal commitment from its members in words and deeds.
This definition is not meant to be evaluative in the sense of implying that a group is good, bad, benign, or harmful. Rather it is meant to convey a systemic view of such a group, which is comprised of a charismatic relationship, a promise of fulfillment, and a methodology by which to achieve it. Read more here
Robert Jay Lifton described a cult as: having a charismatic leader, who himself or herself increasingly becomes the object of worship, and in many cases, the dispenser of immortality. Spiritual ideas of a general kind give way to this deification of the leader. Second, in cults there occurs a series of psychological processes that can be association with what has been called “coercive persuasion” or “thought reform” […]. And third, there is a pattern of manipulation and exploitation from above (by leaders and ruling coteries) and idealism from below (on the part of supplicants and recruits). (Foreward, Cults in Our Midst, Margaret Singer and Janja Lalich, Jossey Bass, 1995.)
Alexandra Stein, Ph.D. uses this definition: A cultic system is formed and controlled by a charismatic authoritarian leader or leadership body. It is a rigidly bounded, steeply hierarchical, isolating social system, supported and represented by a total, exclusive ideology. The leader sets in motion processes of coercive persuasion (also known as “brainwashing”), designed to isolate and control followers. ( Attachment theory and post-cult recovery, Therapy Today, September, 2016)
Robert Jay Lifton described eight criteria of an environment in which brainwashing takes place:
- Milieu Control – The control of information and communication.
- Mystical Manipulation – The manipulation of experiences that appear spontaneous but in fact were planned and orchestrated.
- The Demand for Purity – The world is viewed as black and white and the members are constantly exhorted to conform to the ideology of the group and strive for perfection.
- The Cult of Confession – Sins, as defined by the group, are to be confessed either to a personal monitor or publicly to the group.
- The Sacred Science – The group’s doctrine or ideology is considered to be the ultimate Truth, beyond all questioning or dispute.
- Loading the Language – The group interprets or uses words and phrases in new ways so that often the outside world does not understand.
- Doctrine over person – The member’s personal experiences are subordinated to the sacred science and any contrary experiences must be denied or reinterpreted to fit the ideology of the group.
- The Dispensing of existence – The group has the prerogative to decide who has the right to exist and who does not. (http://www.apologeticsindex.org/7715-ideological-totalism)
There are hundreds of cults operating within the United Kingdom, and thousands operating around the world, often posing as legitimate philosophies or religions and operating through front groups. They range from small, even one-to-one groups to what are in effect unregulated multinational corporations, complete with their substantial financial, legal and public relation resources and political influence.