Lyric discussion by Heather200408 

Cover art for The Great Parade lyrics by Her Space Holiday

Is the "Here comes your son" part a possible reference to the Beatles song "Here comes the Sun"? The lyrics to that song say "here comes the sun, and I say its alright" instead of HSH which is "he isn't alright." Maybe signifying the time frame of this song?

I don't believe the mother drowned herself in the ocean, the ocean reference is simply a book she was reading to him about the ocean (it could be a real book but I have no idea). The boy just wants to be with his mom who often dreamed of going away to the ocean which she read to him about. "Fill our pockets up" possibly means filling them with rocks in order to drown faster. When people kill themselves by drowning, they often do that so they won't float.

It's a horribly sad song, and I demand a follow up song from Molly's point of view after James was found (possibly) dead.

I absolutely agree with the Beatles reference. If you listen to both songs, the phrases match up:

Here comes your son, Here comes the sun, Here comes your son, Here comes the sun, He isn't all right. I say, it's all right.

Additionally, after the first time saying "Here comes the/your sun/son", it's immediately followed by a background vocal going "dudu dudu" in the same tune.

It's very symbolic, especially the differences in the last lines. In the Beatles song, the chorus is meant to be optimistic and referencing the end of winter....