Schelpen translates to "shells". It's a charming and somewhat whimsical word that evokes images of the seaside and collecting treasures.
In the song, Ronnie carries "de schelpen uit zijn la" (the shells from his drawer) in his bag. This detail suggests a connection to memories, perhaps from a past trip or a cherished collection, hinting at a deeper emotional journey as Ronnie heads home and leaves a difficult period behind.
Ronnie is coming home, and Spinvis tells you so entirely through small ordinary things: a cassette and some shells packed into a bag, the holes in the wall, a poster of Paris, soup at twelve and television all day long. He never says where Ronnie has been, but "Het ging een tijdje slecht, maar dat is nou voorbij" ("things went badly for a while, but that is over now") and "Als je met tellen bent gestopt" ("when you have stopped counting") quietly point at a long stay somewhere Ronnie counted the days.
What makes the song so moving is how gently it turns that release into light. The shadow that used to call itself Ronnie was somebody else, the ghost is out of his head, and when the bus finally stops the moon will be made of silver and it will be summer forever in the house where Ronnie lives. It is a song about a second chance, sung in the plainest words available.