Complex sentence: However, afterwards she occasionally appears in Ichitaka's mind to scold him during his bouts of self-pity, her manifestations being the result of Ichitaka's subconscious trying to tell him something important.
Split into simpler sentences: However, afterwards she occasionally appears in Ichitaka's mind to scold him during his bouts of self-pity. These manifestations are really Ichitaka's subconscious trying to tell him something important.