Oneirology
Oneirology is the study of dreams, the events which occur within dreams, the rules which govern the dream reality, and the affects that the normal world have on dreams. Although not all dreams are magical in nature, i.e. altered or induced by the presence of mana, its importance makes it considered by many to be a magical science. There are two main classifications of oneirological study: outer oneirology, which deals with effects the normal world have on dreams, and inner oneirology, which studies the content of dreams.
Dream mechanics
In sleep situations with an abundance of ambient mana (mana not in use by the body), people tend to experience a universe bound by the same rules and histories in their dreams as dreamers in similar non-dream world environments. In modern oneirology, dreams are classified into a coherence scale, which measures the amount the dream world is bound by logical rules. Research suggests that the coherence of dreams is proportional to the inverse square of the strength of ambient mana in or around the dreamer, and that the rules and even historical contexts of dreams are similar in coherent dreams. In contrast, incoherent dreams tend to be random, hard to follow, and lack structure.
Artificially-induced coherent dreams
Due to the correlation between ambient mana and the coherence of dreams, it is possible to artificially create coherent dreams by altering the presence of mana surrounding the dreamer. The most effective means to do this is by giving a subject mana supplement. It is not strictly necessary to go to sleep to achieve a dream, especially in situations with exceptionally high ambient mana, although this can be extremely dangerous for a variety of reasons. Despite this, many ill-advised individuals attempt this for recreational purposes.
Aside from mana, it is likely there are a variety of factors affecting the probability of having a coherent dream. Dream talker communities, have a high rate of people regularly experiencing coherent dreams. A study by Kaskij et al. in 2010 showed that dream talkers in Malszec residing in Dovreija can have coherent dreams, even with low mana levels in the environment.
Oneirolinguistics
Oneirolinguistics is an inner oneirological field studying languages in the dream world, called oneirolanguages. In coherent dreams, dreamers are able to learn to read and listen to languages that do not exist in the normal world. Languages around the world have oneirolinguistic influences. For example, the Malaszec Alphabet is descended from the Latin script, which is from the dream world.
Oneirolinguistics is an important field of study for international trade and diplomacy because oneirolanguages are not restricted by geographical location in the normal world. English is a common oneirolanguage, and without geographical barriers, dream talkers around the world have learned it. Artificially-constructed auxiliary languages have been proposed which are influenced by one or more oneirolanguages. Auxlangs often have a simplified grammar so speakers don’t need full fluency in any oneirolanguage to understand.