Relief came when at the age of twenty-four he joined a non-sectarian church in Bedford (his own point of view being Baptist). A man of so energetic spirit could not long remain inactive, and within two years he was preaching in the surrounding villages. A dispute with the Friends had already led to the beginning of his controversial writing when in 1660 the Restoration rendered preaching by persons outside the communion of the Church of England illegal, and he was arrested and imprisoned in Bedford jail. Consistently refusing to give the promise of submission and abstention from preaching which at any time would have secured his release, he continued in prison for twelve years, not suffering particular discomfort and working for the support of his family by fastening the ends onto shoestrings. During this time he wrote and published several of the most important of his sixty books and pamphlets. At last, in 1672, the authorities abandoned the ineffective requirement of conformity, and he was released and became pastor of his church. Three years later he was again imprisoned for six months, and it was at that time that he composed the first part of 'The Pilgrim's Progress,' which was published in 1678. During the remaining ten years of his life his reputation and authority among the Dissenters almost equalled his earnest devotion and kindness, and won for him from his opponents the good-naturedly jocose title of 'the Baptist bishop.' He died in 1688.
Several of Bunyan's books are strong, but none of the others is to be named together with 'The Pilgrim's Progress.' This has been translated into nearly or quite a hundred languages and dialects--a record never approached by any other book of English authorship. The sources of its power are obvious. It is the intensely sincere presentation by a man of tremendous moral energy of what he believed to be the one subject of eternal and incalculable importance to every human being, the subject namely of personal salvation. Its language and style, further, are founded on the noble and simple model of the English Bible, which was almost the only book that Bunyan knew, and with which his whole being was saturated. His triumphant and loving joy in his religion enables him often to attain the poetic beauty and eloquence of his original; but both by instinct and of set purpose he rendered his own style even more simple and direct, partly by the use of homely vernacular expressions. What he had said in 'Grace Abounding' is equally true here: 'I could have stepped into a style much higher ... but I dare not. God did not play in convincing of me ... wherefore I may not play in my relating of these experiences.' 'Pilgrim's Progress' is perfectly intelligible to any child, and further, it is highly dramatic and picturesque. It is, to be sure, an allegory, but one of those allegories which seem inherent in the human mind and hence more natural than the most direct narrative. For all men life is indeed a journey, and the Slough of Despond, Doubting Castle, Vanity Fair, and the Valley of Humiliation are places where in one sense or another every human soul has often struggled and suffered; so that every reader goes hand in hand with Christian and his friends, fears for them in their dangers and rejoices in their escapes. The incidents, however, have all the further fascination of supernatural romance; and the union of this element with the homely sincerity of the style accounts for much of the peculiar quality of the book. Universal in its appeal, absolutely direct and vivid in manner--such a work might well become, as it speedily did, one of the most famous of world classics. It is interesting to learn, therefore, that Bunyan had expected its circulation to be confined to the common people; the early editions are as cheap as possible in paper, printing, and illustrations.