Frankenstein created a monster. (a novel 1818).
The 3rd definition of the word 'Frankenstein' in the dictionary: "anything that becomes dangerous to its creator".
When we 'unwittingly' believe a thought, we create a perception. ('bogyman' is a example)
Our amygdalae are hard-wired to automatically react to perceptions.
We experience our "thought-created" perceptions; they evoke/cause emotions.
It's time we 'recognize' we simulate/counterfeit perceptions.
When we don't recognize creating 'auxiliary' perceptions, we inadvertently become victims of our creations; we suffer unpleasant emotions and/or experience dysfunctional behavior.
When you say to someone; "You hurt my feelings"; your looking in the wrong place/direction for the cause of your emotions.