A moment of theatrical abstraction that stood out to me as particularly effective was in the Broadway revival of Fiddler on the Roof that I saw in 2005. For those of you who are not familiar with the story, the narrator/main character Tevye (played by Harvey Fierstein) has arranged a marriage with his daughter Tzeitel to the wealthy butcher Lazar Wolf. Tevye discovers that his daughter is in love with her childhood friend, the tailor Motel Kamzoil. Tzeitel wishes to be free of her arranged marriage and Tevye decides to break tradition and gives his blessing to the young couple.
Tevye realizes that he will have to explain to his wife Golde why he has broken this very respected tradition, and does so in what is probably my favorite scene in the show.
He explains to Golde that her grandmother came to him in a dream and scolded Tevye for arranging the marriage with Lazar Wolf instead of with Motel, who Tzeitel is meant to be with. He then continues to elaborate on his dream and how he was confronted by Fruma-Sarah, Lazar Wolf's late wife. Fruma-Sarah threatens to curse Tzeitel if she "steals" her husband. Tevye successfully convinces his wife to allow Motel and Tzeitel to marry by fabricating this story.
The way that that this story is presented is the abstract part. Instead of just explaining this dream to his wife, Tevye's dream is acted out on stage, while he and Golde interact with their ancestors and ill-willed spirits in their pajamas. At the height of the madness in the production I saw, the entire stage was frantically raising and lowering into raked and flat position, while the entire cast was surrounding Tevye as he was plagued by the spirits they represented.
Here's a link to the movie version of the show some context.
I think that horrible tragedies like the Holocaust must be treated with respect for those who have suffered and are still suffering. The quote "the abundance of real suffering tolerates no forgetting" is absolutely correct. These events, as unthinkable as they are, actually did happen. If the feelings that people have about them are not expressed and the events are not talked about to future generations, how can we learn to prevent the same things from happening in our future? These subjects must not be disrespected or be used to inflict more pain and suffering to those harmed by denying their existence or by using the material for personal gain. Making beautiful or entertaining artwork about the Holocaust is not only acceptable, but necessary to keep the memory of the thoughts, feelings, and experiences of the ones affected alive. Art among other things is about translating the human experience to other humans.