The Question and Answer section for The Lais of Marie de France is a great resource to ask questions, find answers, and discuss the novel.
The lady's lover is supernatural.... otherworldly. The knight was not of this world.
Your query is very much a thematic question. Check out the GradeSaver themes page below. You can draw morals from the various themes if you like:
I'm not sure what you mean by components..... characteristics of the child?