The Clavis or Key is a book written by Jacob Boehme, a German mystic and theologian, that provides an exposition of some principal matters and words found in his writings. The book is a guide to understanding the complex and esoteric ideas presented in Boehme's works, which explore the nature of God, the universe, and the human soul. The Clavis or Key offers insights into Boehme's philosophy and mystical teachings, and includes discussions on topics...