Career
Greenfield was elected and consecrated a Bishop by the Holy Synod of the Neopythagorean Gnostic Church in 1986. His episcopal title "Tau" is sometimes abbreviated as "T" and prefixed to his legal name, and thus he may also be referred to as T Allen Greenfield. In February 2006, he called for their resignation and stepped down from all managerial duties in protest, issuing a strong criticism of the current Outer Head of the Order, William Breeze.
His book Secret Cipher of the UFOnauts ("a very strange book, even for the field of UFOlogy") discusses UFOs in terms derived from Carl Jung, according to Robert Anton Wilson.
His The Story of the Hermetic Brotherhood of Light includes discussion of the Hermetic Brotherhood of Light versus Helena Blavatsky"s Brotherhood of Luxor but is, according to a reviewer in Aries, to be used "with care".
Greenfield has devoted the last eight years to the worldwide Free Illuminist or Congregational Illuminist Movement which currently has more than three hundred members.