What is an example of motif in the novel, Tell the Wolves I’m Home?

One recurring theme (motif) in the novel is that of the storage area known as 12H. 12H is the storage cage that was assigned to the apartment where Toby and Finn lived. When Toby decided to allow Finn's family to believe that it was his fault that Finn became sick, he became an outcast, and as a small way of compensating him for all that he sacrificed, Finn builds him a place where he can go and pass the time that Finn is spending with June or Greta. He hangs velvet cloth from all sides to make the inside private, and then created a room that reflected who Toby and Finn were. He began with a small crystal chandelier, and an Oriental carpet sits on the floor. There are upholstered chairs and a chaise lounge, along with a wood bookshelf and side tables that gave the room an overall Victorian feel. A bowl on the table is filled with small chocolate bars and another with crystal liquor bottles to accompany the crystal glassware. Books bound in leather fill the shelves, each a guide to life, trees, gemstones or other interests. The crowning touch is the myriad of canvases all created by Finn. It was his tribute to the love of his life - Toby.