So I'm running a game with a mythic underworld, and lost souls of people who have died in unfortunate ways are a fairly common encounter type in the dungeon. Got me to thinking about how before going into the dungeon, adventurers might be wise to make their peace with whatever gods they worship, so that they hopefully end up in a quality afterlife rather than a crap one.
Makes sense as a cleric spell, or even better as a use for Theology (which is currently a meh proficiency that never gets picked). A character can tend to the souls of four characters who share his faith per rank of Theology, in about an hour a day of prayer, confession, ritual, guilt-tripping, and suchlike. The beneficiaries of this effect gain a +2 "state of soul" bonus to Tampering with Mortality rolls if they die while under the spiritual guidance of a theologian. Hireling and henchmen under the influence of a theologian may gain +1 morale because they know they're in good with the big man in the sky, but are also prone to bouts of moral behavior. Multiple theologians do not stack. Theologians are hireable as Healers in terms of availability and wages, but they may not want to follow you into the wilderness, so "organic" theologians are still convenient.