When you're heading through Maintenance to meet with Ahti, you'll come to a room with several options to exit and it is aptly marked as the Janitor's Office. Instead of looping around the back to meet with Ahti, you can instead turn left upon entering and you'll see a break room. Inside this break room is the Merry Go Round Pony, an Object of Power that will pull you into the Astral Plane. You'll first want to bind to it, and then you'll unlock the Evade ability. By pressing
, you'll be able to shift dodge in the direction of your choosing (using the left control stick) for a short burst. You can also pair this up with the Levitate ability later on to cover larger distances.