 We know more about Lancaster 's character than of most of his contemporaries through his memoirs , the <unk> de <unk> medicines ( Book of the Holy Doctors ) . This book is a highly personal treatise on matters of religion and piety , but it also contains details of historical interest . It , among other things , revealed that Lancaster , at the age of 44 when he wrote the book in <unk> , suffered from <unk> . The book is primarily a devotional work though ; it is organized around seven wounds which Henry claims to have , representing the seven sins . Lancaster confesses to his sins , explains various real and mythical medical <unk> in terms of their theological symbolism , and <unk> the reader to greater morality . 
