According to Kandinsky, the reason for the creation of the object must have a purpose and that object must affect the human spirit. For an act to be pure and deep, it must have an inner effect. Movement free from external foci is beautiful. ''The more freely abstract the form becomes, the purer, and also the more primitive it sounds. Therefore, in a composition in which corporeal elements are more or less superfluous, they can be more or less omitted and replaced by purely abstract forms, or by corporeal forms that have been completely abstracted... '' ''There is no "must" in art, because art is free'' Wassily Kandinsky.