The most delusive thing in life (as it stands for my point) is the way experience feels — the flow of consciousness which turns out in habits and streams of thoughts. Being young a man may come to idea that everything's whether too easy or too complicated. Depending on this conclusion one develops himself dependant on his usage of organization that's already existent or on his means to organize world around him.
In any case one develops his connection with world resolving all kinds of perplexities or running away from them. When a kid one sees great complexions in common objects or situations, but faces them easily (well, I mean his 'eyes' — the way he perceives). Being adult man faces common difficulties as a pathfinder. When old one often looses a sense of surprise from anything he'd become used to. But there's one case when this general patterns can be altered: sense of experience which grows not from sense of quantity but from understanding of quality which bring self-confidence. And that is exactly a thing which changes in personal progress when not a weight of age hangs down a man but when a man toughens from his age.