It happens with dispiriting frequency when you have a fictional future society, cut off from the modern world, and with a vastly different set of cultural values. Someone in this future finds A Book (usually Shakespeare, but any other western canonical author will do) and - despite the aforementioned vastly different set of cultural values - they are enormously moved by it. They usually understand it *identically* to the way that 20th and 21st century readers would understand it. Often, the Timeless Truth and Beauty will disturb and shock the complacent masses of this future society, who see their shallowness reflected in its depth.