Weighs On My Mind

This is the second picture to [link] in the “My Mind” series which I’ve decided to start up. The first was ‘Read my mind’ and now it’s ‘Weighs on my mind’. Next up, ‘Out of my mind’! The cleverness.

EDIT: I've taken away the explanation for symbolism behind this. I really just want the veiwer to interpret it in their own way. If you really want to know the meaning, just ask.