What is in this image? Describe it as if you were explaining it to someone from the 15th century.

Behold, a curious scene depicted in a drawing a playful, mythic creature that resembles the fantasies of a forest sprite or a frolicsome beast, akin to a fox with the cheerfulness of a young child. This creature is caught in mirthful sport, controlling a floating contrivance crafted from thin material that catches the wind. It is tethered to this creature by a long twine, allowing it to sail and dance high up in the air, near the sun that is shown shining brightly in the sketch. The contraption, adrift in the breeze, seems to mimic the shape of a ship’s sail, elongated and narrow.The creature displays joy and innocence, with its pudgy tummy and vigorous tail, expressing a delight that transcends the familiar mortal joys in our humble villages. One might imagine this depiction as a story or a vivid dream, shared by a village bard to enthrall wide-eyed children by the flicker of a hearth''s fire. Such merriment and flippant conquests of the air would surely amuse and spark the imagination of any who behold it.