Spheara is defined as the essence of Spiritual energy within any living creature. Spirits themselves are "frames," but will not be able to interact physically with the Physical Realm unless they contain Spheara within them.
Spheara is also a currency used in Edreoll (as well as other games of the MA Universe). Upon defeating a creature, their Spheara will display on the screen. Walking up to Spheara will result in the player absorbing it.
Players can only hold a certain amount of Spheara. In Edreoll, the maximum Spheara one can hold without a Spheara Lantern is 10,000. However, by holding a Spheara Lantern (or more) the maximum Spheara one can hold will increase. There are more efficient lanterns that can allow players to hold more than other lanterns.