I may specially relate with your loss and sorrow, LadyRodgers, because my dad is right now dying from leukemia, with ups and downs and no hope of surviving more than a few days or weeks, at best a few months.
Here is an excerpt from Khalil Gibran, on death :
...what is it to die but to stand naked in the wind and to melt into the sun?
And what is to cease breathing, but to free the breath from its restless tides, that it may rise and expand and seek God unencumbered?
Only when you drink from the river of silence shall you indeed sing.
And when you have reached the mountain top, then you shall begin to climb.
And when the earth shall claim your limbs, then shall you truly dance.
Your mind\soul is aware of your dad, let him go gently...
Take care