Klages has written a two-volume work, "Geist als Widersacher der Seele" (third edition 1954). It is a huge book, comprising totally over 1500 pages. Its sheer size makes it difficult to read. However, the book contains a number of useful and interesting chapters. Reading them makes almost fun. The chapter that contains some relevant ideas on expressive movements, is Chapter 62 "Bewegungserlebnis". In this chapter, Klages argues that expressive movements are conditioned by the emotional system prevailing in the person. This word refers to sentiments, to use the terminology first coined by William James, if I remember correctly. The sentiments are the longer-term emotional systems characteristic for the individual, in contrast to emotions and affects. If the emotions grow stronger, this may lead to a domination of the affects. Some other persons nearby may experience the expressive movements emitted by the individual; this leads to a feeling that one is moved. For this phenomenon, Klages is using the term "Mitbewegtsein", i.e. a social feeling conditioned by the sight of the expressive movements. A modern concept is "empathy", or "sympathy". Klages' is not very easy to read, nor is it easy to translate. It contains a number of difficult German concepts that presume some knowledge in German in order to be understood, e.g. concepts like "Fürsichsein", or "Selbstbewegung". Klages says that one should make a difference between "expressive movements" and "being moved by other persons". Another important concept is the polarity of the movement. This discussion may be found in Chapter 74, on "Magna Mater", a discussion on the symbolism of feminine traits. This chapter is devoted to an examination of the ideas presented by Johann Jakob Bachofen (1815-1887). For a useful summary of Bachofen's ideas, see Henri F. Ellenberger's "The Discovery of the Unconscious", p. 281 ff. In every expressive movement, there is, according to Klages a certain polarity. One may find an element of the space (feminine element, space means "resting"), or an element of movement (masculine element, "going forward"). In his graphological texts, Klages finds some more polarities: the ego is dominating ("reason"), or the impulses are dominating ("lack or control"), or the emotions are dominating ("easily moved"), or the social feelings are dominating ("super-ego - personality"), and so on. Klages' idea is that the human personality is at same time an undivided whole, and a deeply divided being: the essence of the person appears in every single movement; but, on the other side, every person possesses certain polarities, traits that are contradictory. It is easy to understand that Adler was impressed by Klages' multifaceted psychology.