The entire book is presented as a dream sequence narrated by an omniscient narrator. The allegory's protagonist, Christian, is an everyman character, and the plot centres on his journey from his hometown, the "City of Destruction" ("this world"), to the "Celestial City" ("that which is to come": Heaven) atop Mount Zion. Christian is weighed down by a great burden-the knowledge of his sin-which he believed came from his reading "the book in his hand" (the Bible). This burden, which would cause him to sink into Hell, is so unbearable that Christian must seek deliverance. He meets Evangelist as he is walking out in the fields, who directs him to the "Wicket Gate" for deliverance.