Far Realm aberrations are foreign to our universe and a blight on the natural order. By concentrating and spending an action, you can sense the general presence of an aberration if they are within 120 feet. This ability will indicate that creature’s general presence to within 5 feet, but does not allow you to see that creature if they are hidden or invisible.
You are immediately aware of any aberration if you pass within 10 feet of them. This does not allow you to see that creature if they are hidden or invisible, but does not require you to use an action.