You make one of your spells last all day.
Your spell will last 24 game hours.
Spells of instantaneous duration are not affected by this feat, nor are those
whose affects are dispelled. A persistent spell uses a spell slot 6 slots
higher than the base spell.
Note that this feat only affects spells with a range of "personal" - it
cannot be applied to ranged spells or those that can affect other people.
* This feat is a metamagic feat.
* The Extend Spell feat is a pre-requisite to gain this feat.