Just took Purified Mind edge then I get this happen:


PROTECTED civilized <943hp 533m 712mv 21600tnl (-30.91%) 12 PM>
Your divine fervor fades in intensity.

PROTECTED civilized <943hp 533m 712mv 21600tnl (-30.91%) 12 PM>
The cathedral bells chime twelve times, calling the devout to highsun prayer.

PROTECTED civilized <943hp 533m 712mv 21600tnl (-30.91%) 12 PM>
com fervor
You close your eyes and hum for an instant.
You are already feeling divine fervor!


PROTECTED civilized <943hp 483m 712mv 21600tnl (-30.91%) 12 PM>
aff
You are affected by:
Commune: 'bless' modifies save vs spell by -12 for 47 hours.
Commune: 'bless' modifies hit roll by 6 for 47 hours.
Commune: 'detect evil' for 31 hours.
Commune: 'crusade' modifies save vs spell by -12 for 21 hours.
Commune: 'crusade' modifies hit roll by 6 for 21 hours.
Skill: 'justiciar badge' for 17 hours.
Skill: 'justiciar network' for 15 hours.
Commune: 'protection from evil' for 14 hours.
Commune: 'fervor' modifies save vs mental by -11 for 7 hours.
Commune: 'fervor' modifies morale by 15 for 7 hours.
Skill: 'anticipate' vs. bash modifies wisdom by 2 for 5 hours.
Skill: 'vigilance' for 1 hours.
Skill: 'vigilance' for 1 hours.
Skill: 'vigilance' for 1 hours.
Commune: 'righteousness' for 1 hours.
Commune: 'sanctuary' for 0 hours.
Skill: 'avoid' for -1 hours.


Not sure what happened here...

As the helpfile indicates, you'll notice a shorter-duration additional fervor boost. After that decayed, your fervor did indeed fade in intensity.

-Ish