I'm certain each village has their own diety to worship. However, the main goddess is no longer a prominent figure so should I say?

Indeed. At one point, our world was on the verge of losing all of its mana source, due to its overconsumption through the use of magitechnology. If I were to speak of everything involved, this would become a rather long story. But essentially, we were able to revive the Yggdrasil tree and thus strengthen Martel's power once again in order to sustain the world's natural balance.