Final answer:
The narrator is heading to Canterbury as part of a pilgrimage with a group of other pilgrims.
Step-by-step explanation:
The narrator is heading to Canterbury as part of a pilgrimage. In medieval times, pilgrimages to important religious sites, such as Canterbury Cathedral, were undertaken as a form of spiritual journey and devotion. The narrator joins a group of other pilgrims as they travel together to the shrine of Saint Thomas Becket in Canterbury.