Sentence:  As one works with different categories of patients, one discovers that each of them can be described in terms of the <WSD>"Sprachraum</WSD>", the language space they have mastered and use in order to communicate with us, appeal to us, struggle with us, oppose us, resist us, and search for attachment of which they may well be afraid and must avoid. 
Meaning of the word marked with <WSD> tags:  the (repertoire) of (language) available to a given person