Who is Psychic from What Dreams May Come: A Novel and what is their importance?

The psychic is the woman who claims to have received Chris Nielsen's words and writes the manuscript for Chris, who will not leave her alone until she complies. Once she writes it, she delivers it to Chris's brother, Robert. She understands that he does not believe her, but by the time she has completed it she does not care. All she wants is to be rid of it. Robert never does get the clairvoyant's name.