The cultivated man of today is gradually turning away from natural things, and his life is becoming more and more abstract. Natural (external) things… - Piet Mondrian

The first thing to change in my painting was the color [c. 1908-09]. I forsook natural color for pure color. I had come to feel that the colors of nature cannot be reproduced on canvas. Instinctively I felt that painting had to find a new way to express the beauty of nature.

Kandinsky points out [in his book On the Spiritual in Art] that Theosophy (in its true sense; not as it generally appears) is yet another expression of the same spiritual movement which we are now seeing in painting.

With that work [Mondrian is referring to his figurative painting 'Devotion' he painted in 1908, of a devotedly looking girl] I only envisaged a girl conceived devotedly.. ..and by giving the hair that sort of red, to tone down the material side of things, to suppress any thoughts about 'hair', 'costume', etc, and to stress the spiritual. I believe that color and line can do much towards this end; moreover, I should not wish to do without line.. .It is precisely the overall line of a thing which I find fundamentally important, and also, the colour.