From The Art and Popular Culture Encyclopedia
Enthusiasm originally meant inspiration or possession by a divine afflatus or by the presence of a god. Johnson's Dictionary, the first comprehensive dictionary of the English language, defines enthusiasm as "a vain belief of private revelation; a vain confidence of divine favour or communication." In current English vernacular the word simply means intense enjoyment, interest, or approval.
Originally, an enthusiast was a person possessed by a god. Applied by the Greeks to manifestations of divine possession, by Apollo (as in the case of the Pythia), or by Dionysus (as in the case of the Bacchantes and Maenads), the term enthusiasm was also used in a transferred or figurative sense. Socrates taught that the inspiration of poets is a form of enthusiasm.
Its uses were confined to a belief in religious inspiration, or to intense religious fervour or emotion. Thus, a Syrian sect of the 4th century was known as the Enthusiasts. They believed that "by perpetual prayer, ascetic practices and contemplation, man could become inspired by the Holy Spirit, in spite of the ruling evil spirit, which the fall had given to him". From their belief in the efficacy of prayer, they were also known as Euchites.
Several Protestant sects of the 16th and 17th centuries were called enthusiastic. During the years that immediately followed the Glorious Revolution, "enthusiasm" was a British pejorative term for advocacy of any political or religious cause in public. Such "enthusiasm" was seen in the time around 1700 as the cause of the previous century's English Civil War and its attendant atrocities, and thus it was an absolute social sin to remind others of the war by engaging in enthusiasm. The Royal Society bylaws stipulated that any person discussing religion or politics at a Society meeting was to be summarily ejected for being an "enthusiast."Template:Citation needed During the 18th century, popular Methodists such as John Wesley or George Whitefield were accused of blind enthusiasm (i.e. fanaticism), a charge against which they defended themselves by distinguishing fanaticism from "religion of the heart."
In contemporary usage, enthusiasm has lost its meaning that someone is over excited and interrerible.
The Enthusiast also refers to the "Type Seven" personality type (not to be confused with the "Type Three"/"Type A" personality) Template:Harv. Some who fall into this modern definition of "enthusiasts" are adventurous, constantly busy with many activities with all the energy and enthusiasm of the Puer Aeternus (Peter Pan Complex). At their best they grab life for its different joys and wonders and truly live in the moment but, at their worst, they dash trepidatiously from one new endeavor to another, too scared of disappointment to actually enjoy themselves. Enthusiasts fear being incapable to provide for themselves or to experience life fully.
The term is sometimes used to describe the demeanor of fans of various activities or organizations, ranging from hunting aficionados to wine lovers.