the ending also serves up several pseudo-breakthroughs, moments where something repressed or forgotten comes out and then just… doesn't go anywhere
that's certainly intentional but i Do Not Care For It
combined with the surrealism it feels like just faffing around
in the end you're left with the Captain as an alienated meandering writer-figure while Man is the only character who actually finds any part of himself (the scene in the box, then the scene on the boat)