Luke's inner life was nourished by her imagination and reading books on art and spiritual, even esoteric, thought. In her early years of painting abstractly, she read about Theosophy, tutored by
Hans Hofmann and
Jock Macdonald, then in later years, she read and studied books by authors such as
P. D. Ouspensky who also interested Macdonald. She wrote her thoughts about Ouspensky. Around 1958, through Ouspensky she learnt of
Gurdjieff and with others, started a Gurdjieff study group in Oshawa. She was interested enough in Gurdjieff to go to the
Gurdjieff Foundation and attend meetings in Toronto and New York. Her diverse readings supplied imagery for her body of work. == Later life ==