You use ouranic akasha to enhance your zeal and ability to smite your foes.
Prerequisites
Constitution 13 or veilweaver level 1, Charisma 13, zeal class feature.
Benefit
You can bind essence into this feat. Once essence is bound, it remains invested for 24 hours or until the next time you weave veils for the day.
You gain additional daily uses of your zeal ability equal to the amount of invested essence.
You also gain an insight bonus equal to the invested essence on smite damage when making a smite attack.
You gain 1 point of essence.