If a distinction is to be made between divination and fortune-telling, divination has a formal or ritual and often social character, usually in a religious context; while fortune-telling is a more everyday practice for personal purposes.
Categories
Psychologist Julian Jaynes categorized divination according to the following four types:
Omens and omen texts.
"The most primitive, clumsy, but enduring method...is the simple recording of sequences of unusual or important events." (1976:236) Chinese history offers scrupulously documented occurrences of strange births, the tracking of natural phenomena, and other data. Chinese governmental planning relied on this method of forecasting for long-range strategy. It is not unreasonable to assume that modern scientific inquiry began with this kind of divination; Joseph Needham's work considered this very idea.
Sortilege (cleromancy).
This consists of the casting of lots, or sortes, whether with sticks, stones, bones, beans, coins, or some other item. Modern playing cards and board games developed from this type of divination.
Augury.
Divination that ranks a set of given possibilities. It can be qualitative (such as shapes, proximities, etc.): for example, dowsing (a form of rhabdomancy) developed from this type of divination. The Romans in classical times used Etruscan methods of augury such as hepatoscopy (actually a form of extispicy). Haruspices examined the livers of sacrificed animals.
Spontaneous.
An unconstrained form of divination, free from any particular medium, and actually a generalization of all types of divination. The answer comes from whatever object the diviner happens to see or hear. Some religions use a form of bibliomancy: they ask a question, riffle the pages of their holy book, and take as their answer the first passage their eyes light upon. Other forms of spontaneous divination include reading auras and New Age methods of Feng Shui such as "intuitive" and Fuzion.
