Ethereal refers to something light, delicate, and seemingly too perfect for the physical world. It is often used to describe things that appear otherworldly or spiritual, possessing a certain fragility or transparency. In paranormal or supernatural contexts, ethereal beings or entities, such as ghosts or spirits, are considered to exist in a non-physical realm and are often depicted as having a ghostly or translucent appearance. The term can also be applied to experiences, objects, or landscapes that evoke a sense of the sublime or transcendental, beyond the reach of ordinary human experience.