its human nature to search for meaning, even where none exist, we would often invent it if an obvious answer was laciking - often with some romanticism/idealism. as artist mark rothko said : "there's no such thing as a good painting about nothing".
once you are told what the meaning is, our human minds formulates a belief, or at least an understanding of 'where you're coming from'. i house shared with several art students when at uni, and coming up with a title for their works was great fun, because when they were displayed, the students had to explain the title and the meaning of their piece. 90% of the time, it was nonsense, even if the work was rather good, the title was doggy doo's.
but people went along with it with 'oh i see' and 'yeah i'm feeling that expression' etc its all rather pretentious, probably like the couple in noamis post, who were told this 'idea' about a gate and then adopted it into their ideology because it suits.