Essence Seeds are small blue bioluminescent pellets which are found across the Pandoran landscape. In Na'vi mythology, these seeds are said to contain small amounts of Eywa's spirit. More than just good luck charms, the seeds are also believed to bring Eywa's blessing to those who know where to look for them.
Avatar: The Game[]
In the NDS game, they represent a pseudo-currency for dealing with lore. They can be collected all over the game world from defeating enemies and so forth, and then spent on various upgrades at the Lore Sharing Shrine. Some abilities such as Eywa's Heart increase the number found.
Source[]
- James Cameron's Avatar: The Game (Nintendo DS) - Ingame Pandorapedia