I know it’s probably mostly just a figure of speech, but I know for me there genuinely are times when I see something I find so beautiful I actually do feel a kind of ache - sort of a sore tightness in my chest. It’s similar to the feeling I get when something makes me vaguely sad.
What is happening physically to cause this feeling? And why? Why would a body have a physical reaction like that to something that looks nice? And why would there possibly be any similarity in the way a body feels looking at something lovely and something sad?
“Stendhal syndrome”, per Wiki anyway, is just the name for what the OP describes. It doesn’t attempt to tackle the physiological end of things. I’ve felt the same thing and the “soft explosion” in the chest that comes with young love and would be interested in knowing if science has noodled out where those physical sensations come from.
I think the sadness comes from seeing a thing of great beauty and realizing that such beauty is possible but is hardly ever achieved. Beauty makes normal life seem mundane in contrast.
Well, maybe so, but the OP is talking about a physical feeling in the chest. The question, surely,is not why we feel particular emotions, but why those emotions give rise to physical feelings in the body, and even particular, reproducible physical feelings in particular parts of the body.
My not-completely-wild guess is that it it is something to do with the sympathetic nervous system, and perhaps certain glands associated with it but I do not know what in detail. Perhaps, beauty is rousing us to action, somehow, but action we cannot actually initiate in the circumstances.
I’ve heard some of us cry when happy because we realize the moment will pass - perhaps it’s related to that? Ephemeral, aching beauty, here now but soon gone.
I get the ache in my chest thing, too, in addition to a hitch in my breath and a slight speeding up of my heart rate. My take on it is that awe-inspiring beautiful things: mountains, oceans, vast fields of stars in the sky, directly remind me that I’m small and insignificant.
Rationally I can appreciate that and it makes me feel good, but my nervous system still goes right into “scared rabbit” mode, though I’ve associated this reaction with feelings of well-being and pleasure.