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

Imagine a small four-wheeled carriage, but unlike those drawn by horses, this one moves by its own mysterious inner workings, akin to a mill driven by hidden forces. This carriage, of sturdy build and compact form, appears to hold inside it a creature, much like a large dog standing on its hind legs and possessing the capabilities of a man. The creature is driving the carriage, peering out from a clear panel in front of it which protects him from the elements.Upon the roof of this unusual carriage, you might behold a pile of belongings strapped securely. These possessions include what appears to be rolls of cloth or bedding and some circular, metallic tools, perhaps cooking implements or the like. These indicate that the creature is on a journey, possibly venturing to far-off places.Above this scene, a cloud bursts forth with rain and a bolt of lightning, indicative of a tempest perhaps, serving as a reminder of nature''s formidable power.Beside the road, there is an odd-looking sign, bearing a symbol reminiscent of the sun, perhaps indicating the way or bearing some message or warning. This entire depiction captures a moment of travel and adversity, a journey by a self-moving carriage under the duress of a storm.