Hallucinations, like dreams reveal truths that are too difficult to face (like Abby’s affair with her boyfriend’s father, which resulted in her illness). It's a corollary to Carl Jung's idea that dreams are the answers to questions we don't yet know how to ask.
The episode explored more than medicine. Lawrence Kaplow’s great script as provides a nice lens through which to observe Taub (Peter Jacobson) and his marriage, as well as comment on the eminently opaque and enigmatic Wilson (along with his reluctance to buy furniture).
Is Taub who he says he is: a repentant cheater who sincerely wants to renew his marital vows to “do it better” this time around? Or are his romantic olive branches towards wife Rachel intended as mere cover for his continued affairs? Is he creating his own black hole through which no light will emerge from the subterfuge of his lies?
House is at first convinced that Taub’s moves are strictly a cover story that will allow him to remain a serial cheater, but slowly he’s convinced otherwise after Taub re-proposes to his wife Rachel. House is affected by this overtly romantic gesture and approves. “Good for you,” he tells Taub introspectively; it’s a phrase House reserves to express his admiration when someone makes an unexpected and difficult choice.
But House’s moment of approval is brief as he watches Taub flirt with a young nurse. House’s disappointment is obvious; Taub’s gestures are meaningless, and you have to wonder what visions might plague Taub's sleep as his subconscious conscience wrestles with him over his actions. Is he, like Abby tormented by what he does?
But on House, there is no character more opaque than Wilson. He is as unknowable as House wishes he could be. And when House insists he buy furniture for the new condo, Wilson can’t seem to reveal enough of himself—even to himself—to furnish his apartment. “We are what we sit in,” House claims. Wilson has spent so much of his life being who he believes others want him to be, even he doesn’t know who he is. At least that’s what House claims.