A quest is a heroic journey–often a dangerous mission–undertaken by a protagonist in order to achieve a goal or complete an important task.
The term comes from the medieval Latin questa, meaning “search” or “journey.”
Quests are the foremost element of the epic. They were popular in medieval stories (e.g., King Arthur’s knights and the quest for the Holy Grail), folklore, and Greek and Roman mythology. Quests have been popular since the earliest English literature and continue to play an important role in fiction today. The Lord of the Rings by J.R.R. Tolkien is quite the quest. Frodo didn’t quit the quest.
(Source: Quest, Literary Terms, literaryterms.net.)
CALYPSO — John Denver
See also: M is for Moving Along with Motifs — And More (Journey Motif, Hero’s Journey)