Dear Peg:
My deepest sympathies for how hideous this feels for you right now. It is god-awful, no two ways about it.
I don't know if there is an ideal way for us to lose a parent. My own father succumbed slowly to dementia two years ago and was a very different man towards the end of his life than he had been earlier, of course. And yet, all these different times of him were still him. The disease may have weakened the body and mind but his temperament and core personality of such affableness and good naturedness remained true to the end.
Your father was a very strong man, as you describe him from your memories of him. He remains that same man today though. That former man resides inside the man who you now see and who is loosening his grip on life before your eyes. You don't lose him, in that sense. He will always be a presence in your life because of the man he was, because of the tenets by which he lived his life and how he treated others, and all the things that we learn from our fathers, by example, and continue today in our own thoughts and actions. I catch myself asking myself frequently, 'what would my father have done' and 'how would he behave now?' and the answers inform my decisions and philosophy. I bet there are many ways in which you do the same as you carry the strength of your father inside you, having learned from his examples. It's a gift, really.
Sending you all friendship and support as you and your family summon up the strength to say goodbye to your father and ease his suffering.
Clare