The more abstract is form, the more clear and direct is its appeal. In any composition the material side may be more or less omitted in proportion as the forms used are more or less material, and for them substituted pure abstractions, or largely dematerialized objects. The more an artist uses these abstracted forms, the deeper and more confidently will he advance into the kingdom of the abstract. And after him will follow the gazer at his pictures, who also will have gradually acquired a greater familiarity with the language of that kingdom. Must we then abandon utterly all material objects and paint solely in abstractions? The problem of harmonizing the appeal of the material and the non-material shows us the answer to this question. As every word spoken rouses an inner vibration, so likewise does every object represented. To deprive oneself of this possibility is to limit one's powers of expression. That is at any rate the case at present. But besides this answer to the question, there is another, and one which art can always employ to any question beginning with "must": There is no "must" in art, because art is free.

[looking back] I was unable to invent forms, and the sights of such forms always disgusts me. All the forms I ever used came of their own accord, they presented themselves to me already shaped, all I had to do was coy them, or else they took shape while I worked, often surprising me.. .I have trained myself not simply to let myself go, but to put reins on the power that works within me, and to guide it.

First I will make different color tests: I will study the dark – deep blue, deep violet, deep dirty green, etc. Often I see the colors before my eyes. Sometimes I imitate with my lips the deep sounds of the trumpet – then I see various deep mixtures which the word is uncapable od conceiving and which the palette can only feebly reproduce.

Approaching it in one way, I see no essential difference between a line one calls 'abstract' and a 'fish'. But rather an essential likeness. This isolated line and the isolated fish alike are living beings with forces peculiar to them, though latent. They are forces of expression for these beings and of expression on human beings, because each has an impressive 'look' which manifests itself by its expression. But the voice of these latent forces is faint and limited. It is the environment of the line and the fish that brings about a miracle: the latent forces awaken, the expression becomes radiant.. .The environment is the composition. The composition is the organized sum of the interior functions (expressions) of every part of the work.

All means are sacred when they are dictated by inner necessity. All means are reprehensible when they do not spring from the fountain of inner necessity... The artist must be blind to 'recognized' and 'unrecognized' form, deaf to the teachings and desires of his time. His open eyes must be directed to his inner life and his ears must be constantly attuned to the voice of inner necessity.

If until now colour and form were used as inner agents, it was mainly done subconsciously. The subordination of composition to geometrical form is no new idea (cf. the art of the Persians). Construction on a purely spiritual basis is a slow business, and at first seemingly blind and unmethodical. The artist must train not only his eye but also his soul, so that it can weigh colours in its own scale and thus become a determinant in artistic creation. If we begin at once to break the bonds that bind us to nature and to devote ourselves purely to combination of pure colour and independent form, we shall produce works that are mere geometric decoration, resembling something like a necktie or a carpet. Beauty of form and colour is no sufficient aim by itself, despite the assertions of pure aesthetes or even of naturalists obsessed with the idea of "beauty". It is because our painting is still at an elementary stage that we are so little able to be moved by wholly autonomous colour and form composition. The nerve vibrations are there (as we feel when confronted by applied art), but they get no farther than the nerves because the corresponding vibrations of the spirit which they call forth are weak. When we remember however, that spiritual experience is quickening, that positive science, the firmest basis of human thought is tottering, that dissolution of matter is imminent, we have reason to hope that the hour of pure composition is not far away. The first stage has arrived.

Generally speaking, colour is a power which directly influences the soul. Colour is the keyboard, the eyes are the hammer, the soul is the strings.The artist is the hand that plays, touching one key or another, to cause vibrations in the soul.

..I let myself go.. [in Kandinsky's Murnau-period when he was painting in open air; c. 1908 – 1914] I thought little of the houses and trees, but applied colour stripes and spots to the canvas with the knife and made them sing out as strongly as I could. Within me sounded the memory of early evening in Moscow, before my eyes was the strong, colour-saturated scale of the Munich light and atmosphere, which thundered deeply in the shadows.