Clavis or Key is a book written by Jacob Boehme, a German Christian mystic and theologian, in the early 17th century. The book is a collection of his writings and teachings on the nature of God, the universe, and the human soul. Boehme believed that through contemplation and spiritual practice, individuals could gain insight into the divine and achieve a deeper understanding of their own existence. The Clavis or Key is considered to be one of Boehme's...