Death. Ya it's cheesy but I didn't understand it one bit when I was a kid. I had a couple relatives die when I was young, and my mom tried to explain it but I just didn't get it. I tried to think about it sometimes and it scared me. I would think about people who are close to me dieing and it would scare me almost to the point of crying (remember I was five back then). But now I am older and I understand, and appreciate it much better now than I did back then.
Just like Scout when she was young, whenever I faced the thing I didn't understand and the thing I didn't know, I tried to run from it. Whenever Scout or Jem had to cross in front of the Radley house they would sprint by because they didn't know what was there, and were afraid of what they don't know. Whenever I tried to think about death, it scared the crap out of me, just like walking by the Radley house scares the crap out of Scout and Jem. Even though both Scout and I were scared of something, we learned later that its not what we think and its actually something to appreciate.
When I was young, I lost my grandfather and my cousin. I wasn't very close to either of them but I still had many questions. Where do you go when you die? Does it hurt? How do you die? All of these questions I pondered. I didn't quite understand what I was thinking about, much like Scout didn't know what Boo Radley was exactly. Although, now that I am older, and much more knowledgeable, I can think much more in depth that I could when I was little. I am now able to comprehend what death means, and understand what it is and appreciate it much more. I just recently lost a Great Aunt, and I can much better understand and appreciate what the process is, and what actually happens. So now much like Scout at the end of the book, I am no longer afraid and now very much appreciate what it means to die.