Narration.
Pretty much, it is saying that a man that is young in age my be old in hours. A youth isn’t like that cause we usually keep moving, we never stay in one spot for a long time, unless we have to. Then it says that a youth is closer to God than an old man is because his eyes are better. I don’t really think that is true, but I will go with it. I think that if we can all be close to God if we keep our focus on him and no one or nothing else.
I like to see you forming your own opinion instead of just believing everything you read. So many people just assume the writer must be correct. Sometimes they are, but the only way you can know is to question it. Keep questioning everything and forming your own opinions. It will serve you well.