Part 1 of Essay
was a Carthusian mystical writer. One of his works, De theologia mystica, also known as De triplici via, was written between 1246 and 1297. This book was one of the first to attempt a methodical description of the interior life according to the schema of the "three ways". Those "three ways" consisted of the purgative, ....

Part 2 of Essay
.... prayer. He made much of the usefulness of "anagogic movements" of the soul using short upward movements of mind and heart and fervent aspirations. These movements would then build up and maintain the desire of tending toward God. This type of anagogic prayer and the Cloud of Unknowing, which was also written by , is evident. The works of that teach the way of unitive prayer have inspired many teachings of known people like Henry of Herp, Bernardino of Laredo, Jean Gerson, and many others. , thoroughly ....