Complex sentence: Ezriel influentially proposed using what he called a "three part interpretation", included the patient's required or conformist relationship to the group, seen as a defence against the wished-for relationship driven by fear of an imagined catastrophic relationship.
Split into simpler sentences: Ezriel influentially proposed using what he called a "three part interpretation", including the three key areas of adaptation, desire and anxiety. He highlighted the patient's required or conformist relationship to the group, which was seen as a defence against the wished-for relationship, a defence in turn driven by fear of an imagined catastrophic relationship.