求翻译：The requirement for these three qualities was first identified in the context of a counselling relationship. He believed these three qualities were necessary and sufficient to enable constructive personality change. This psychological perspective has had a considerable influence upon the nursing profession as it aims to give power back to the clients, or patients, empowering them to make their own decisions and promote psychological growth. Humanistic psychology is relevant to nursing as it places focus on the uniqueness of the experiencing self and views this as important as observing behaviours or making generalizations.是什么意思？

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