An Adult Child is someone unknown to mankind. The little person asks the big person"what are you gonna get up to today Billy" ? "ah I'll probably just go golly walkin about town and try save my mind" Like Billy, they are extremely sensitive beings and only wishes well for their mind and at the same time for the world. They don't tend to forget about the unimportant important things in life and also not themselves therefore anybody else. It's merely to a point of no return, when in not just some but in all cases they do return but then it's as if there's this other big little them wanting to take over their stuff and not wanting them to play as children but wants them to play as these little big grown-ups. These little big themes however isn't them and for the most part they just confuse people like Billy, who just wanted to play in the Sun, under the Stars and the Moon just as children would play but alas they're apparently adults now.