A heart of steel
Rolls like a wheel
A heart of gold
Is soon sold
A heart of flesh
Forgets like a fish
A heart of plastic
fragile yet fantastic
A heart of wood
Longs to be understood
A heart of stone
Sits on a throne
A heart of sand
Easily touched by one’s hand
A heart of glass
Showing its internal jazz
A heart of cactus
Hurting your lungs’ canvas
A heart of gear
With mechanical fear