Agitated and unsure as to how exactly being a Christian was supposed to influence his desire to write, he thought up an idea while sketching an outdoor landscape— during a visit to his father in Ireland, interestingly—and penned a prosy retelling of John Bunyan’s Pilgrim’s Progress, within the span of only two weeks, a work which Lewis titled The Pilgrim’s Regress: An allegorical apology for Christianity, Reason, and Romanticism.
