If players are in the land more than they're involved with it more ala connected to it more.
When a player is fighting a mob he is involved in the land. If he's doing a quest he is involved in the land
When another player runs by they have an opportunity to be involved with what they're doing.
It doesn't matter what your doing just as long as your doing something, but can you involve yourself if your skipping over it?
All this is being connected to eorzea.
It's the circle of liiiiiiiiiiiiiiife. lol