Well said!
Glad you 'got it'. It's not really psychology but just Art 101. E.g., there's a good reason Wagner wrote that music; it's been darned effective for well over 100 years; lots of people 'get it', enough to keep opera companies going around the world.
"You mean you can make such sounds with a symphony orchestra?"
"Yes, Virginia!".
The music can sound like what it feels like to have a great loss, a dear child, a loved spouse, a company founded that failed, a case of cancer, and much more. Great losses are so common that the music can 'reach' nearly everyone in a large audience.