Caution fellow monks! Using this discipline while feigned will break the feign. You can however use this disc and then FD and you'll be ok.
While there is rarely a good time to have your feign broken, where I learned the above was about the worst place it could happen. I was in Fear solo to do my turn in to Lord Cazic himself for the Whistling Fists. My guild had been there on a raid earlier that day and cleared most of the zone (cept CT) but I did not have all of the turn in pieces with me. Got to the ring of fire, hailed CT (who happens to love ikky monks) but I got proximity agro from a local mob so CT joined in. I successfully feigned but was down to about 20% so used this discipline to heal up a little while I waited for said baddies to wander off. Soon as I hit the Disc I see the message that I was no longer feigned...Loading Please Wait. <sigh>
Got my Whistling Fists from CT on second try after CR and gated out (thanks Thurg gate potion!)
Learn from the fallen monks before you. :-)