Clara Hali's work attempts to "capture the sensations of the body from within". It wouldn't surprise me if many (perhaps even most) people were carrying this kind of "lumpiness" within themselves, though I know that it wouldn't go down well at the Wing Chun Academy where suppleness and flexibility is emphasised. But yes, overall in modern society I don't doubt that this is a pretty accurate metaphor.
The work's forms also allude to the topography of the Blue Mountains west of Sydney. (Blackheath is a town located in those mountains.) For those from beyond out shores, the term "mountains" is a bit of a misnomer; Australia really doesn't have any true mountains as they would be understood in other, more geologically active continents. However the Blue Mountains are certainly rough, and formed a barrier to settlement between the arrival of the First Fleet in 1788 and Blaxland, Wentworth and Lawson finding a way across them in 1813. Although perhaps not mountainous they're certainly rocky, and the sculpture reflects that well.