"Although the influence of Boehme was to be felt far and wide, ranging from French and German theosophers and esoterists to Russian contemplatives, perhaps the most artistically powerful expression of purely sapiential teachings deeply influenced by him are to be found in the hymns of Christian gnosis which comprise the Cherubic Wanderer of Angelus Silesius (1624-1677) which are also among the most remarkable works of German literature. This collection, so close in both form and content to Sufi poetry, is based upon the central theme of return to God...it is the al-ma'rifah of Islam or the jnana of Hinduism and very much in accord with works of such nature whether they be in Arabic and Persian or Sanskrit."