What is the main conflict in Morality Play by Barry Unsworth?

Morality Play is set in fourteenth-century England. It tells the story of a renegade priest, who serves as the narrator, and a company of travelling actors. The priest, Nicolas Barber, happens upon the travelling players, who have stopped at a clearing in the countryside to care for Brendan, a dying friend and fellow actor. Nicolas joins the acting company, taking over Brendan's role, even though he fears that play-acting is considered a sin by the diocese. The players travel with the dead man in their cart for some time but eventually realize that they must stop somewhere to bury him.