[RJT]

I think for the most part the author intends it. Although, every time one reads an interview, for example, the artist usually tries to feign that it wasn’t intentional (who knows why they do that - seems to me they often do that, anyway.)

This (if no intent) can lead to Jung’s theory of the collective unconscious. Which coincidentally was going to be a post I was going to inquire about: What is modern psychology’s (or other science’s) view of the collective unconscious.