These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Tear Jerker: Troy's final scene, where he picks up his bat (all that he has left at this point in the play) and taunts Death, after Alberta dies, Rose becomes emotionally cold towards him, he's signed Gabriel over to the hospital, and he's just chased Cory out of their home:
Troy: I can't taste nothing. Helluljah! I can't taste nothing no more!...Come on! It's between you and me now! Come on! Anytime you want! Come on! I be ready for you...but I ain't gonna be easy.
What Do You Mean, It's Not Symbolic?: Fences, as the title would indicate. More specifically, how they can be used: either to keep something in (Which Rose metaphorically does by trying to keep the family together) or how it could be used to keep someone out ( which is what Troy eventually does, isolating himself from his family by cheating on Rose and kicking Cory out of the house.)
Troy's references to injustice towards African-American baseball players represent the injustice all black athletes faced in a time where racial integration in sports didn't exist.