You can manifest powers to greater effect.
You can empower a power. All variable, numeric effects of an empowered power are increased by one-half. An empowered power deals half again as much
damage as normal, cures half again as many
hit points, affects half again as many targets, and so forth, as appropriate. Augmented powers can also be empowered (multiply 1-1/2 times the
damage total of the augmented power).
Saving throws and opposed checks (such as the one you make when you manifest
dispel psionics) are not affected, nor are powers without random variables.