Dissociative Human Identity

In The Filth, Slade becomes confused about whether doppelgangers are impersonating him or he has parapersonas within himself. Although his character persevered through a unique form of brainwashing, the implications of his psychological struggle apply to ordinary human psychology.
Typically, people get scared of people who are eerily similar to them in the external world, but long to have their internal voices conform to one personality. By attempting to develop the self as a united individual, people seek to distinguish themselves from a chaotic external world. To stay sane, people squelch frequent internal dialogue from drastically different voices and perspectives.

But without conscious effort to unite our personas, emotions, and inner voices, people may not be as stable as they like to think. Perhaps the reason why were so scared of people with dissociative identity disorder is that they reveal an element of all human's psychology. While some people's identities are more separeted than others, everyone has different personalities within them and engage in internal dialogue. As I write this, I am thinking from different perspectives, drawing from different experiences, and summarizing information from multiple inner voices. In stream of consciousness, human thought is not organized or linear. In contrast, our free consciousness elicits spontaneous and random ideas and emotions. In order to transform these jumbled ideas in a thought process that represents a single mind, one initially needs to make an effort of will. Eventually this thought organization becomes second-nature and people forget how they ever created the linear network of ideas in the first place.

But even when we attempt to unify our inner voices and conform to one thought patter, can we ever truly eliminate the distinct personas inside of us? Perhaps part of the reason why we seek solidarity and kinship with other people is to learn how to improve the relationships between different personas in ourselves. As a reflection of our inner relationships, external relationships demonstrate our self-worth and likeability. By maintaining stability in our relationships with other people through family units, friendship, and other social connections, people learn how to unite their inner families, develop friendships between their different personas, and navigate their inner social world.

Just like Slade, people seek to discover a common theme within themselves to attain a single vantage point to view the world. But we should be careful not to sublimate important personas within ourselves in order to consolidate ourselves.