Alice Bailey makes no reference to unidentified flying objects. This is not surprising since Alice Bailey's books were written between 1919 and 1949 and "the emergence of religion specifically focused on UFOs is a post-1947 phenomena." But she did speak of Masters as having evolved beyond the human level, and expounded a cosmology of a living universe in which even planets and stars are regarded as living entities. These ideas may partially account for an association in minds of some between Bailey, and others of the Theosophical schools, and UFOs. For instance, Christopher Partridge wrote of this association as "easily transferred". The connection does exist in the sense that there is a subset of persons interested in both esoteric writings and UFOs and who link them as shown by the fact that some books that cite Alice Bailey or Theosophy also cite UFOs.