Essence is a magical resource.
Essence is an invaluable resource, which is the main ingredient for crafting. Essence is also used to re-enchant your magical equipment.
How to obtain
The main way to obtain essence is to salvage your magical items instead of selling them. Magical items include the rarity of Uncommon and higher, having at least one buff on them. Upon salvaging the item, you'll gain essence worth 10 times the item's value.