The book above, by Erich Fromm in 1951, is a must-read to go forward here, and I think it may be had as a free download.
Google "Erich Fromm The Forgotten Language" to get a copy. It is pertinent to past and future discussion(s) here.
And also try to track down the book below, which contains essays that are relevant too.
Both books deal with reality -- what it is and what it isn't.
These books will revamp your thinking about UFO sightings, some UFO sightings anyway.RR