This book contains a small selection of the letters of the German Protestant mystic and poet Gerhard Tersteegen (1697 - 1769) to his followers. Tersteegen was a representative of the pietism movement, or rather, one of its directions, the so-called "quiet in the land", according to the psalmist: "For they speak not peace: but they devise deceitful matters against them that are quiet in the land." (Ps. 35:20, KJV) In the book "Great Saints"...