(Because of) This Millstone Heart Video (MV)

I am a shadow
A hollowed-out soul
Empty and mourning
The life that lived me
No longer whole
But if I'm just a shell
Why am I so heavy
Dry, rattling bones
Mere dust in the wind
Lifeless, forsaken
A heart hard as stone
No longer beating
Weighing me down
No way to get free
Because of this millstone heart
I am too far from the surface
Because of this millstone heart
I am drowning in existence
This callous heart
Has no pulse
Has no life
This deadbeat heart
Is pulling me under
Into the depths of
Tempest whisky
This millstone heart
Is dragging me way down
Into the depths of
Raging seas
Because of this millstone heart
I am too far from the surface
Because of this millstone heart
I am drowning in existence
I am a shadow
A hollowed-out soul
Can anyone replace
This hard heart of mine?
My shell may be empty
But burdened I be
Because of this millstone heart