"
Inside the walls of gold, outside of happiness
It's all been a show, too late to confess
No room for heart and soul, no room for innocence
Since he's on top of the world. He has a lot of money. But money cannot by him true friendship, and "feelings".
He wore a mask on this "show". His feelings are all hidden inside. On he out side, he is acting, but it's too late to tell.
He can't be himself anymore, he has "killed" the "past him". And innocence were not with him. He has learned tricks, plans, become cunning.