It was an interesting conversation I always used to have with this one particular professor, about an inverted universe. He said that in each moment, an alter ego living in another universe was behaving in an exactly opposite manner. So, a feeling of rage was complemented by utmost serenity, a longing for love found its own in a burning hatred and so on.
It always amazed me how he imparted an innovative dimension to thinking. I used to go to his lab and we sat through hours