At last in 1653 after more than two years of this struggle the darkness broke. Bunyan felt himself "converted" and freed from the burthen of his sin. He joined a Baptist church at Bedford, and a few years later he became famous as a preacher. As he held no formal post of minister in the congregation, his preaching even under the Protectorate was illegal and "gave great offence," he tells us, "to the doctors and priests of that county." He persisted, however, with little real molestation until the Restoration, but only six months had passed after the king's return when he was committed to Bedford Gaol on a charge of preaching in unlicensed conventicles. His refusal to promise to abstain from preaching kept him there eleven years. The gaol was crowded with prisoners like himself, and amongst them he continued his ministry, supporting himself by making tagged thread laces, and finding some comfort in the Bible, the "Book of Martyrs," and the writing materials which he was suffered to have with him in his prison. But he was in the prime of life; his age was thirty-two when he was imprisoned; and the inactivity and severance from his wife and little children were hard to bear. "The parting with my wife and poor children," he says in words of simple pathos, "hath often been to me in this place as the pulling of the flesh from the bones, and that not only because I am somewhat too fond of those great mercies, but also because I should have often brought to my mind the many hardships, miseries, and wants that my poor family was like to meet with should I be taken from them, especially my poor blind child who lay nearer to my heart than all besides. Oh, the thoughts of the hardships I thought my poor blind one might go under would break my heart to pieces. 'Poor child,' thought I, 'what sorrow art thou like to have for thy portion in this world! Thou must be beaten, must beg, suffer hunger, cold, nakedness, and a thousand calamities, though I cannot now endure the wind should blow upon thee.'" But suffering could not break his purpose, and Bunyan found compensation for the narrow bounds of his prison in the wonderful activity of his pen. Tracts, controversial treatises, poems, meditations, his "Grace Abounding," and his "Holy City," followed each other in quick succession. It was in his gaol that he wrote the first and greatest part of his "Pilgrim's Progress."