Instant Clarity( Tome of Battle: The Book of Nine Swords, p. 31)
You have sharpened your concentration to the point that you can focus your psionic abilities with just an instant's thought.
Concentration 7 ranks,
You can take a swift action to become psionically focused after successfully initiating a martial strike. You can use this ability three times per day.
Instant Clarity can be used in place of the Psionic Meditation feat (see Expanded Psionics Handbook) to qualify for a feat, prestige class, or other special ability. You can take both this feat and Psionic Meditation.
A character without this feat must take a full round action to become psionically focused.