Rules note - a Divine aura that requires a congregation to maintain is known as a Dominion aura. One that does not require a congregation is called an Empyrean aura, and can appear in completely natural and wild places. They are described on RoP:D, pg. 12. So it's entirely possible that the aforementioned pagan COULD be offended at a Divine aura appearing during the spring floods, assuming there was a Divine purpose for doing so - in game mechanics, this would likely be something with a Divine might, such as powerful divine creature or a saint living nearby, a holy relic, location of a miracle, or even just a "holy place" - the Tree of Life, for example, has a Divine Aura.
A ravine in the wilderness: a Franciscan friar in holy contemplation interfering with a spring revel in honor of Potrimpos. Yes, that would be a subject for some heavy role playing. :mrgreen:
I also recall 'The Feast' from Tarkovsky's Andrei Rublev for some ideas.
Cheers
Another interesting possibility occurs to me in terms of the idea of a Druidic Dominion aura that has been out of use for some time- if combined with the idea that past use in worship can cause a magical aura of 1 per century then a dominion aura from a druidic circle might fade to the point where it leaves a magic aura behind, leaving any magi who bear witness to such an event with numerous questions...