Outside Time

I am moving in and out of time
Beneath the sea of death
Into the light of life
My spirit lives forever
My body serves a master
Time whittles away my skin
Time is impatient and stubborn
The Spirit…untouchable
The Spirit…free
The Spirit…eternal
Beneath the sea of death my body dies
But my Spirit goes to whom it belongs
I am a being of time and eternity
What am I?