Sometimes the Gods of Planaterra need something done, so they’ll give it to one of the many bored adventurers out there. Many adventurers welcome this, as it gives them something to do. But the tasks have become mundane, and not too different from the day jobs most people hold these days.
To avoid any kind of divine calamity, employers treat being a Chosen One as authorised leave akin to a civic duty. Just remember the name of the deity who chose you, so you can go to their temple to claim any expenses.