Among the Edain, many referred to the Valar, whom they knew little about, as Gods. Though in reality, they originated from the mind of Iluvatar which leads me to understand that any belief system within Middle-Earth should based on monotheism, the singular God being Eru. However, the fact that the powers within Arda are so prevalent, a polytheistic system could easily be interpreted as fewer would understand or know that these 'powers' originated from Eru. Yet, there is little evidence of any religion within Arda that we can know, therefore it is more difficult to interpret the inhabitants understanding of who is deemed a God and who is not. Do you think the Valar should be considered as Gods? Should they be considered Demigods or Deities on a par with Eru himself? How can a God be defined within Middle-Earth if there are so many from which to choose?