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Incubation is the religious practice of sleeping in a sacred area with the intention of experiencing a divinely inspired dream or cure. Incubation was practised by many ancient cultures. In perhaps the most well known instance among the Hebrews, found in 1 Kings 3, Solomon went to Gibeon "because that was the most renowned high place to offer sacrifices." There "the Lord appeared to Solomon in a dream at night," and Solomon asked God for the gift of an understanding heart. Among the members of the cult of Asclepius, votive offerings found at ritual centres at Epidaurus, Pergamum, and Rome detail the perceived effectiveness of the method. Incubation was adopted by certain Christian sects [1] and is still used in a few Greek monasteries. Modern practices for influencing dream content by dream incubation use more research-driven techniques, but sometimes they incorporate elements reflecting ancient beliefs.
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A form of incubation was also used by the iatromantes of the ancient Greeks. According to Peter Kingsley, iatromantis figures belonged to a wider Greek and Asian shamanic tradition with origins in Central Asia. A main ecstatic, meditative practice of these healer-prophets was incubation (ἐγκοίμησις, enkoimesis). More than just a medical technique, incubation reportedly allowed a human being to experience a fourth state of consciousness different from sleeping, dreaming, or ordinary waking: a state that Kingsley describes as “consciousness itself” and likens to the turiya or samādhi of the Indian yogic traditions.
Dream incubation is a modern psychological technique for inducing a dream about a specific dream topic, either for recreation or to attempt to solve a problem. For example, a person might go to bed repeating to themselves that they will dream about a presentation they have coming up, or a vacation they recently took. While somewhat similar to lucid dreaming, dream incubation is simply focusing attention on a specific issue when going to sleep.
In a study at Harvard Medical School, Dr. Deirdre Barrett had her students focus on a problem and found that it was possible to come up with novel solutions in dreams that were both satisfactory to the dreamer and rated as objectively solving the problem by an outside observer. In her study, two-thirds of participants had dreams that addressed their chosen problem and one-third reached some form of solution within their dreams. [2] Other studies have found this type of bedtime dream incubation effective in solving problems of a more subjective, personal nature. [3] In Barrett's book, The Committee of Sleep , she describes her study of prominent artists and scientists who draw inspiration from their dreams. While most of these dreams occurred spontaneously, a small proportion of the respondents had discovered informal versions of dream incubation on their own. They reported giving themselves successful pre-sleep suggestions for everything from seeing finished artwork in their dreams to developing plots or characters for a novel to asking dreams to solve computing and mechanical design problems. [4]
