Hidden just inside the clouds is a thriving society of ethereal beings, so pure that they cannot be seen by the eyes of men. Still, the invisible Sylphs have managed to captivate the imagination of people for over six centuries.
A Sylph (also known as Sylphid) is an air spirit. They are formed of air, they live in the air, and they have unusual power over the air, particularly the wind and the clouds. Usually, Sylphs are portrayed as guardians who protect secret knowledge, beautiful women, or the environment, but it’s not out of the question for a Sylph to cause mischief among men.
From the dawn of Sylph mythology in the 16th century, and throughout the classical era, Sylphs have been described as being something between a spirit and a creature. While they are invisible to human beings, they do have physical bodies.
Sylphs have more than just invisibility and brawn going for them. They also have a type of intelligence that men lack. They are born understanding the universe and the connections between all its parts, and they may know of ways of manipulating those parts to cause specific effects, knowledge which caused many alchemists to pursue them throughout the classical era. Perhaps the most impressive aspect of Sylph intelligence is their supernatural foresight. The future holds few mysteries for a Sylph.
According to early Sylph mythology, the Sylph is one of four creatures, called elementals, who embody the cardinal elements. Sylphs, of course, embody air, while gnomes embody earth, salamanders embody fire, and undines embody water. The elementals guard great treasures of power and knowledge, which are hidden in the pure worlds of each element.