You spend 10 minutes bonding with the world around you and communicating with it. As the connections to the land grow, you become aware of any disturbances. This includes all creatures moving within 500 feet of you and their approximate direction, number, and size. You can choose to ignore creatures that you're fully aware of, such as your allies. In densely populated areas, it becomes incredibly difficult to differentiate creatures unless they are in a particularly empty area or are significantly larger than all other creatures around.