The Earth Sapta is a drink created to bind one's spirit to the elements. Fused with magic, the potion will allow the strong willed to see the earth elements as no one else can. Your spirit will be connected to the earth, and only a select few shaman know the recipe. Using the potion grants Sapta Sight.
The Earth Sapta is given to shaman when they start one of the Call of Earth quests:
The sapta is always drunk in a holy place, and never anywhere else.
The Earth Sapta should only be drunk in one of two places: