Annie Besant’s book where she put forward the idea that theosophical mystical energies could be portrayed as colours or abstract shapes was practically the invention of abstract art. A lot of artists rushed out and read it and suddenly thought, ‘oh God you could, you could portray love as a colour, or depression as a colour” All of a sudden abstract art happens, a flowering out of occultism.
Sufism on its theosophical side is mainly a product of Greek speculation.
Gnostic ideas had a considerable influence upon such idealists as Goethe , Novalis and Hegel . The theosophical movement of the 20th century with which Gnosticism has much in common, rightly claims the Gnostics as its spiritual ancestor. Jungian psychology , which owes not a little to this movement, can be of some help in interpreting Gnostic mythology and may help to show that behind it there is a religious experience of a certain type.