Literature can be extremely difficult to understand at times, while, at other times, it is amazingly easy. Sometimes we might think that we fully understand something, but we really don't.
So, what can we consider a full understanding of literature? In many instances, the author may be the only one that has a full understanding of the work. Sometimes, though, the author may not even know it all.
The best we can do is to make attempts to get a full understanding of a concept. At times, analyzing the misunderstood concept, over and over again, is the best way to understand it.