Devas and Men - A compilation of Theosophical Studies on the Angelic Kingdom By the Southern Centre of Theosophy Robe, South Australia

Introduction;The concept of Deva-Man is both intriguing and Immense; intriguing because much of it still remains a mystery and what information is available is often carefully veiled; immense, because it appertains to the whole of man and to his relationship with nature and the Universe. 

As one reference in this book states: