Thought vs Action
The common Western paradigm of mental illness puts thought as the creator of a person's actions. That means that a person has a thought and that thought can then create or cause an action.
There is a tv comedian joke about a person wandering the streets of a city saying "Hello" "Well thank you" "I don't know" etc. In another city there is another person wandering the streets saying "Hello to you too. You look healthy" "Do you know what time it is?". The idea behind the joke is that maybe there is a depth to "thinking" beyond its daily practicality.
The point of this paradigm is that thought and action can be perceived sometimes as not master and slave but as two independent processes that are synchronized in most people. In other words thought does not cause action but it does usually correlate with it.
Behaviorism tries to ignore thought and it is apparently as successful in defining behavior as types of psychology that focus exclusively on thought.