UAP refers to objects detected in the air, sea​, and space that defy explanation. ​We will ​draw upon Jung’s ​work in Flying Saucers: A Modern Myth of Things Seen in the Skies (195​8)​:

My conscience as a psychiatrist…bids me fulfill my duty to prepare those few who will hear me for coming events which are in accord with the end of an era. As we know from ancient Egyptian history, they are manifestations of psychic changes…which bring about, or accompany, long-lasting transformations of the collective psyche. / Eyewitnesses of unimpeachable honesty announce the “signs in the heavens” which they have seen “with their own eyes,” and the marvelous things they have experienced which pass human understanding. [CW10 paras 589/610]