@Cael-Fenton That was wonderfully put! I find my views echoing yours to a great degree - I do not think that Tom was Maia, particularly because of his disinterest in the Ring. I also attributed to the nature spirit theory, with Tom being a personification of Tolkien's much loved English country side, and Goldberry the seasonal changes. (There was a snippet in Tolkien's letters attributing to this, but I would have to dig up where!) Together, as husband and wife, they do a great job of personifying the 'nature' beliefs in early Norse/Germanic lore, and I always thought them a great way to work in Tolkien's love for the land with an older myth and legend type of feel. There are a few creatures who live outside of the 'peoples' of Arda, and I fully believe these two to be amongst that list - there is no way to really say 'what' they are, so just enjoy 'who' they are. Whoever Tom truly was, my favourite thing is the extremes of his character - going from commanding ancient and massive power one moment, to being gentle and singing silly songs the next. Meeting them was a great way for Frodo to become introduced to the 'bigger world' and the forces therein upon leaving on his quest.