You increase your power point reserve.
Prerequisites: Character level 21st, ability to manifest powers of the normal maximum power level in at least one psionic class.
Benefit: When you select this feat, you gain 19 power points.
Special: You can gain this feat multiple times. Each time you do so, you gain an additional number of power points equal to your previous benefit +2.
Source: Standard Reference Document under Open Game License v1.0a, which updated this feat originally published in the Epic Level Handbook, page 58.