You suffuse yourself with power, gaining 5 temporary hit points. Using this power again when an earlier manifestation has not expired merely replaces the older temporary hit points (if any remain) with the newer ones.

Augment

For every additional power point you spend, the number of temporary hit points you gain increases by 5.

Alternatively, if you expend your psionic focus when manifesting this power, you need not spend any power points to manifest it, but you gain only 1 temporary hit point, and the power cannot be further augmented.