Once you have reached level five you can lead a quest. Please have in mind how many others you wish to bring on the quest and any details about the quest you know. An administrator will then approve your request or if there are any changes or additional info needed in order for them to do so they will let you know. Upon approval you will need to visit the Oracle's Shrine and request a prophecy, once your prophecy has been given and you have all your quest mates (a total of 3 to 5 should be on every quest so you and 2 to 4 quest mates), at this point the quest will begin. If you have any questions at any time before making the quest or while on the quest contact an administrator.
If your quest starts out with a dream, use this template.
To submit a request simply put the title of your quest in the box and hit request quest.
UPDATE: Reminder, only level four's or above can lead a quest and only level three's or above can join one.