"Think of your brain". A image comes to mind. Do you implicitly believe that image is of 'your' brain? or is it a generic image of what your brain would look like if removed from your skull and photographed? This minor error of believing your image is of 'your' brain has no untoward consequences, but there are OTHER contexts when you erroneously believe some of your images are real; the consequences are usually emotional suffering and/or dysfunctional behavior. (see example above of "empty gun") and myrid other "mistakes" prefaced by, "I thought......."
People are pulling the trigger of loaded guns because they HEED FALSE THOUGHTS instead of facts. They don't recognize THOUGHT-CREATED -PERCEPTIONS as 'thought' originated.
Perceptions are not questioned; there reliable guides to survival, etc. But thought created ones ought to be questioned, but they are not and therein is one cause of needless suffering.
Reacting to perceptions is not the problem, the problem is not checking from where they come. For eons, perceptions of/from enviroment brought us to this stage. With the intro of language, we can MAKE/FABRICATE custom perceptions, but we don't recognize doing so. Where not only hard-wired innately to react to perceptions,but we're indoctrinated/habituated to react to 'thought-made-ones to.
Some who read THOUGHT-CREATED-PERCEPTIONS, those three words will 'not compute'. Some readers claim they don't understand what I'm writing about. I reduced it to three words, how shorter can I make it?