Of Mind and Brain

You raise the blade, you make the change
You re-arrange me 'til I'm sane.

An adult human cadaver head cut off around vertebra C3, with no hair, weighs on average somewhere between 4.5 and 5 kg, typically constituting around 8% of the body mass.

You lock the door
And throw away the key
There's someone in my head but it's not me.

Many recent advancements in modern medicine and breakthroughs in the understanding of human physiology have made it possible to separately and artificially maintain tissue viability without the impulses being transmitted by the brain or brain stem.

...And my ties are severed clean
The less I have, the more I gain
Off the beaten path I reign
Rover, wanderer
Nomad, vagabond
Call me what you will

Understanding the relationship between the brain and the mind is a challenging problem both philosophically and scientifically. The most straightforward scientific evidence that there is a strong relationship between the physical brain matter and the mind is the impact physical alterations to the brain have on the mind, such as with traumatic brain injury and psychoactive drug use.

But I'll take my time anywhere
I'm free to speak my mind anywhere
And I'll never mind anywhere
Anywhere I roam
Where I lay my head is home