Topic summary
Enthusiast

Extracted from the Wikipedia article Enthusiasm.
Historical usage
From this, a Syrian sect of the fourth 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.