The nodes

Mrs. Rogers watched the people work all around her farm. The interface let her make changes and create special zones on her property. She was also on the lookout for agricultural-themed nodes. These were important to her, as they could give her farm bonuses. Her plants also helped local mines. Mana, at its core, was a natural enhancer of properties. Thus, from water to animals, being exposed to higher concentrations gave them bonuses. However, the inverse was true, and doubly so. If a plant or person wasn't of a high enough tier, the higher ambient mana poisoned them.