Feat: Exorcist Dedication
You've learned to attract, quell, and purify spirits, housing them in a special receptacle called a spirit dwelling until they're ready to move on. Through the power of prayers or ritual incantations, one mundane object in your possession becomes a spirit dwelling. Your spirit dwelling functions as a lure for lost spirits weakened by their time on the Material Plane. Each day during your daily preparations, your spirit dwelling attracts a spirit wisp who comes to dwell inside. If your spirit dwelling contains no wisps, you can spend 10 minutes in a minor ritual to cast your spirit dwelling around an area and attract another wisp. You can also capture stronger spirit remnants from vanquished undead spirits. As long as your spirit dwelling contains any spirits, it glows faintly, casting dim light in a 10-foot radius.
As an exorcist, you do more than just collect spirits: you also help rid them of their burdens and lingering resentments, aiding their transition from the Material Plane. Every day, before your daily preparations, any spirit wisps and remnants remaining within your spirit dwelling from the previous day are purified and can join the River of Souls in their final journey to Pharasma's Boneyard.
You can also learn abilities that let you purify a spirit in your spirit dwelling immediately in a cathartic surge, granting you a helpful effect as they depart for the afterlife. Any actions you gain from the exorcist archetype gain either the divine or occult trait, depending on whether you used Occultism or Religion to qualify for Exorcist Dedication. Spirit's Mercy is the simplest of the purifications.