I think there is a place in art for the background to say more than the foreground. Indeed this inverse approach bears experimentation. In some ways, Henry James achieved this in the dialogue of his characters. What they did not say was louder than (even contradicting) what they did say.
The best poetry speaks from the background, not the foreground. In music, proper attention is placed on the foreground, either the voice instrument or the direct message of the lyrics. But the more powerful compositions seep down deeper into the sub-soul of the listener.