Thoughts of death

One question has been torturing me
What was the last thought about?
In the head shot, in the head hung
In the head decapitated
In the head suffocated and smashed
What was the last thought about?

My ship goes down, into the deep
I'm all alone, the death is near
I'm drowning in this dark cold water
I'm not afraid, my mind is clear
I see no light, I feel no fear
No voice of suffering
Only dark blue sea
I put coins on my eyes
I lay down, I'm waiting for you to come
Please take me down
I left no letter, no words are needed
No one will know, no one will ever know
My role of derelict was played with pride
The death is here, it is so quite

What was the last thought about?