Tracking implies you fly a heading to maintain the desired "track." You're trying to fly outbound on the 090 radial with a north wind, so you end up flying heading 085.
Homing is mainly an RMI issue inbound to the station. You have a 0 degree relative bearing to the station. Say you tracked out to the 090 degree 40 mile fix and now you want to return to the station. You turn around and fly heading 270. Everything is centered up initially but the north wind pushes you south of course. Instead of correcting for the wind you turn just enough to center the RMI or on a VOR you set a new course to center the needle, say 280. Again you end up with the needle off to the right so again you center the needle and now you're going 290 to the station.
Tracking will give you a straight path to the station, homing will get you there but your actual path will be an arc across the ground.