Source: Casey Morris
The noun cavity has negative connotations due to it being a term used within dentistry, though we seem to forget the true definition.
“An empty space within a solid object”.
One of the most impressive forms of cavities are caves, look at the size and beauty within them things! A fantastic array of wildlife, incredible natural beauty shapes almost purely by water and other elements, stalagmites and stalactites, they’re absolutely incredible. Then take a glance at my feathery friend pictured above, quite cosy and content within this tree cavity.
The point is we can either focus on a cavity as something to be filled within our mouths or we can remember that a cavity can be an area of unparalleled beauty. Sadly I feel as though people are educated and made aware of only one and not the other, as is often the case.