Troy seems to be the radius of the other characters. He is like the sun. The other characters are like the rays. Troy constantly talks about or works on a fence. He says the fence is to keep death out. In his mind as long as the family nestles behind the fence under his controlling "shadow," they will remain safe from harm. It is not shocking that Troy never completely finishes the fence. Just as he is never completely matures. He doesn't walk through life. He runs through life by hurting his wife, sons, Gabe and Alberta. Troy is like a warrior who is growing ancient. As he ages, he talks openly to death. Also, as he ages, his life seems to stagnate while the other characters are able to move forward in life.
"I'm gonna build me a fence around what belongs to me. And then I want you to stay on the other side...Bring your wrestling clothes...You ain't gonna sneak up on me no more. Then, you come up and knock on the front door. Anytime you want. I'll be ready for you." Act 2 Scene II
I think inside any conqueror there is a bed of fear. I sense this fright in Troy. Although, he would like to be remembered as a brave man who won all his battles.