Polaris strikes me as the retelling of a fever dream. I did enjoy The White Ship more than Polaris because it seemed to be a little more cohesive. Either story could easily be the basis for a concept album by Rush or an epic song by Iron Maiden.
I have to admit that I don't much care for these early writings. They are brief and somewhat disjointed, a little too dreamlike to hold my interest. I do hold them in some regard since they show the beginnings of his Dreamlands ideas that take on fuller form in his later writings.