You call into being a shard of psionic crystal and entice the soul of a powerful psion not yet born to enter the shard. You then imbue the soul crystal with a single power you know and can manifest, and a number of power points you expend from your power reserve (in addition to the points necessary to manifest soul crystal in the first place). You can choose to bestow a number of power points up to twice your manifester level. Any creature you give the created soul crystal to can then manifest the imbued power, using the power point reserve you bestowed in the crystal.
The wielder's manifester level is equal to your own manifester level when you create the crystal, so the wielder can choose to augment the power you implanted in the crystal (if manifester level and the soul crystal's remaining power point reserve permit) or possibly use the power multiple times. The imbued power can be manifested only by spending power points from the reserve you initially created when you made the soul crystal, so if you give the crystal to another manifester, that character can't use her own power points to manifest the power in the soul crystal. Manifesting a power from the soul crystal is a standard action that provokes an attack of opportunity. The person using the soul crystal makes all decisions about targeting the imbued power, just as if she were a psion manifesting the power herself.
The soul crystal persists until the duration of the power lapses or there are no longer sufficient power points remaining in the crystal's reserve to manifest the imbued power one time.