Originally Posted by
4e HotF p40
The Feywild is a realm of magic; this much anyone who has ever heard a fairy tale knows. The very substance of the plane is infused with arcane magic, and many of the creatures that inhabit the realm are so tightly bound to arcane power that it is a natural and instinctive part of their very being. As such, it should come as no surprise that those who hail from, and venture into, the Feywild often develop a natural aptitude for arcane magic.
However, the Feywild is also a wild and verdant place where primeval natural landscapes remain untouched since their creation. Moreover, the influence of the Feywild spills over into the mortal world at fey crossings. Many of those who live on the borders of the Feywild and the natural world develop a rapport with primal spirits, emboldened by the verdant growth the Feywild fosters.