What is a good thesis for a paper on French symbolism poetry?

There are several theses you could use, because French symbolism was a very complex literary movement. To write your thesis, you might consider one of the poets of that time, specifically. You may also want to write on the way in which the poetry focused on transient sensations and moods, instead of lucid statements. Understanding the existence of a transcendental realm was an important part of French symbolism poetry, as well.