Harry Guntrip said this quote

External relationships seem to have been emptied by a massive withdrawal of the real libidinal self. Effective mental activity has disappeared into a hidden inner world; the patient's conscious ego is emptied of vital feeling and action, and seems to have become unreal. You may catch glimpses of intense activity going on in the inner world through dreams and fantasies, but the patient's conscious ego merely reports these as if it were a neutral observer not personally involved in the inner drama of which it is a detached spectator. The attitude to the outer world is the same: non-involvement and observation at a distance without any feeling, like that of a press reporter describing a social gathering of which he is not a part, in which he has no personal interest, and by which he is bored. Such activity as is carried on may appear to be mechanical. When a schizoid state supervenes, the conscious ego appears to be in a state of suspended animation in between two worlds, internal and external, and having no real relationships with either of them. It has decreed an emotional and impulsive standstill, on the basis of keeping out of effective range and being unmoved.