4s usually felt like they are unwanted, or rejected by their parents, or peers in early age and therefor they feel like there is something wrong with them. The rejection might be also just felt emotionally without any visible, or rational external cause and so 4s just live with the idea they've been rejected because they're different and to protect their egoes, they create an image that supports their inner feeling of being special and uniqe in order to protect themselves from the painfull experience of negative external reaction from the enviroment. 4s tend to become slaves of their own emotionality, because the emotions seem to be a connection point between their egoes and the core of their "disturbed nature", that they try to hide as much as they desire to show it. The conflict often builds up and creates a tension and it leads a lot of 4s to an artistic expressions of metaphorical self, because when they create art, they don't literally have to show their true ego, but rather protect their ego with metaphors and hidden meanings that leads us to the core of the existence of a 4. Their ego also manifests in the style of their clothing, or fashion, but a 4, because it beliefs it's disturbed and deffective, creates a false ego, an idea of a self, they jsut feel insecure when it comes to sharing their true and raw selves, because they feel that the rejection might come again and it might destroy them not only emotionally, but also psychologically. The fake self might be so strong, that the 4 looses contact with its true nature and is obsessed with ego protection based on super-ego relevance.