Gerhard Tersteegen (1697-1769) is remembered today mainly as a Protestant poet and writer of lyrics. But the foundations of his theology he has laid down in several prose writings - for the most part known today only to specialists - which have been read from the 18th to the 20th century primarily in pious circles in Europe and North America. Their focus is on topics such as prayer and Christian life, mysticism and separatism. This volume contains the most important articles in their original version. Some texts, which are essential for the understanding of Tersteegen, but are largely inaccessible, are now made available to a wider audience. So far, the research on Tersteegen has been based mostly on newer or posthumous editions of his works. These first editions shed a new light on the pietist Tersteegen, allowing to retrace the development of his work more precisely. ukryj opis