See-Saw

Those lyrics are terribly inaccurate, they are:

Marigolds are very much in love, but he doesn't mind Picking up his sister, he makes his way into the sea saw land All the way she smiles She goes up while he goes down, down Sits on a stick in the river Laughter in his sleep Sister's throwing stones, hoping for a hit He doesn't know so then She goes up while he goes down, down Another time, another day A brother's way to leave Another time, another day She'll be selling plastic flowers on a Sunday afternoon Picking up weeds, she hasn't got the time to care All can see he's not there She grows up for another man, and he's down Another time, another day A brother's way to leave Another time, another day Another time, another day A brother's way to leave

Hopefully it's a bit more obvious what it's about. A girl and her brother are very close until her brother dies, most likely in a war (selling plastic flowers, those poppies that are sold for veterans) and she marries a man who replaces her brother, she goes up, or stays alive, and he is down, or dead.

It's a very depressing song, despite how it sounds at first glance.