You have focused your study on a subset of veils known as a set, granting you a limited knowledge of a few veils.
Prerequisites
Ability to weave at least 1 veil belonging to a veil set.
Benefit
Select a single veil you can to weave that belongs to a veil set. Add all the veils belonging to the selected veil set to your class’ veil list, allowing you to weave them using the normal rules to you weave your veils. If the chosen veil belongs to more than one veil set, you choose which of those veil sets you add to your class list when you gain this feat. (You only gain access to one veil set, not all related veil sets.)
Note that this feat only adds veils to your class list and does not grant any additional abilities. You may not be able to weave all veils from a veil set if they have prerequisites you do not meet, such as only being available for unique chakras (Ring, Voice, and so forth).