Essences?

I've been thinking for quite long time. I've been wanting to write an article that's never been done. Something unique. I just kept think and thing, then I realized something. The Oracle games are a very unmentioned topic, especially the history and backstory to the games. At the same time I've also been wondering what the Essences truly are. So I’ve done some research and here’s what I’ve concluded:

The essences can simply be thought of as a key. A key to the entrance of Onox’s / Veran’s castle / tower. As the storyline goes, Onox / Veran has took Din / Nayru and Link must save them. In Oracle of Seasons, every Essence will cause the Maku tree to grow taller and in Ages, it will cause the Maku Tree’s memory will be restored slightly.

Of course all of that is known from the games. We learned that from the Maku Tress, but is there more to them? The Essences are relics containing spirits of nature and time. The Essences also seem to have other effects, if you read the text from when you get each one, it will say the Essence has a power, for example:

You got the Fertile Soil, an Essence of Nature! Seeds scattered across bountiful lands are nourished in this Fertile Soil!

As it says, the Fertile Soil nourishes seeds across the land allowing them to bloom into beautiful plants. In Seasons, the Essences help plants, and other nature to sprout and grow, but in Ages, the Essences turn those across the land into heroes by giving them courage, love, and aid the lonely as well.

So those are the Essences for you. I honestly never knew they were this important to the land. If they didn’t exist nature wouldn’t exist. And love and courage wouldn’t exist.

Yeah that's a theory of mine that the Essences are bacially the control center of Holodrum and Lybranna.

Indeed. The manga for OoS and OoA made that clearer, as Onox's footsteps of Darkness cause the land around his feet to become barren and lifeless. A very interesting use of metaphors, I think.