" Perhaps DID raises problematic philosophical and psychological concerns about the nature of the mind itself... Ideas of a unitary ego would incline professionals to see multiplicity as a behavioural disturbance. However, if the mind is seen as a seamless collaboration between multiple selves - a kind of trade union agreement for co-existence - it is less threatening to face this subject. "

― Valerie Sinason , Attachment, Trauma and Multiplicity: Working with Dissociative Identity Disorder