
Bibliomancy

Bibliomancy is the use of books in divination. The method of employing sacred books (especially specific words and verses) for 'magical medicine', for removing negative entities, or for divination is widespread in many religions of the world.
Terminology.
According to the "Oxford English Dictionary", the word "bibliomancy" (etymologically from βιβλίον "biblion-" "book" and μαντεία "-manteía" "divination by means of") "divination by books, or by verses of the Bible" was first recorded in 1753 ("Chambers' Cyclopædia"). Sometimes this term is used synonymously with "stichomancy" (from στίχος "stichos-" "row, line, verse") "divination by lines of verse in books taken at hazard", which was first recorded ca. 1693 (Urquhart's "Rabelais").
"Bibliomancy" compares with "rhapsodomancy" (from "rhapsode" "poem, song, ode") "divination by reading a random passage from a poem". A historical precedent was the ancient Roman practice of sortes ("sortilege, divination by drawing lots") which specialized into "sortes Homericae", "sortes Virgilianae", and "sortes Sanctorum", using the texts of Homer, Virgil, and the Bible.
History.
In Judaism, according to the Shulchan Aruch (Rema, Yoreh Deah, 179), it is not the sin of necromancy to divine an answer using the "goral", the practice of opening the Chumash to see an answer to a question, or asking a child for the first piece of scripture that comes to his mind.
Method.
Among Christians, the Bible is most commonly used (in the "Sortes Sanctorum"), and in Islamic cultures the Quran. In the Middle Ages the use of Virgil's "Aeneid" was common in Europe and known as the "sortes Virgilianae". In the classical world the "sortes Virgilianae" and "sortes Homericae" (using the "Iliad" and "Odyssey") were used.
In Iran, Bibliomancy using the dīvān of Hafiz is the most popular for this kind of divination, but by no means the only kind. The Quran, as well as the Mathnawī of Rumi may also be used. Fāl-e Ḥafez may be used for one or more persons. In group bibliomancy, the dīvān will be opened at random, and beginning with the ode of the page that one chances upon, each ode will be read in the name of one of the individuals in the group. The ode is the individual’s fāl. Assigning of the odes to individuals depends on the order in which the individuals are seated and is never random. One or three verses from the ode following each person’s fāl is called the šāhed, which is read after the recitation of the fāl. According to another tradition the šāhed is the first or the seventh verse from the ode following the fāl . An ode which had already been used for one individual in the group is disqualified from serving as the fāl for a second time.
Because book owners frequently have favorite passages that the books open themselves to, some practitioners use dice or another randomiser to choose the page to be opened. This practice was formalized by the use of coins or yarrow stalks in consulting the I Ching. Tarot divination can also be considered a form of bibliomancy, with the main difference that the cards (pages) are unbound. Another way around this is to cut the page with something like a razor.
There is a prevalent practice among certain, particularly messianic, members of Chabad-Lubavitch Chasidic movement to use the Igrot Kodesh, a thirty-volume collection of letters written by their leader Menachem Mendel Schneerson for guidance.
Another variant requires the selection of a random book from a library before selecting the random passage from that book. This also holds if a book has fallen down from a shelf on its own. English poet Robert Browning used this method to ask about the fate of his attraction to Elizabeth Barrett (later known as Elizabeth Barrett Browning). He was at first disappointed to choose the book "Cerutti's Italian Grammar", but on randomly opening it his eyes fell on the following sentence: 'if we love in the other world as we do in this, I shall love thee to eternity' (which was a translation exercise).