You rely on your assuredness and sense of self to help keep your mind clear.
Benefit: Add your Charisma modifier instead of your Wisdom bonus on Will saves against mind-affecting effects. If you have a Wisdom penalty, you must apply both your Wisdom penalty and your Charisma modifier.
In the current version (2nd printing errata), the table and the text are inconsistent. Does the feat apply on all Will saves, or on Will saves against mind-affecting effects?
The table is correct. It only applies against mind-affecting effects.
Pathfinder Roleplaying Game Advanced Class Guide © 2014, Paizo Inc.; Authors: Dennis Baker, Ross Byers, Jesse Benner, Savannah Broadway, Jason Bulmahn, Jim Groves, Tim Hitchcock, Tracy Hurley, Jonathan H. Keith, Will McCardell, Dale C. McCoy, Jr., Tom Phillips, Stephen Radney-MacFarland, Thomas M. Reid, Sean K Reynolds, Tork Shaw, Owen K.C. Stephens, and Russ Taylor.