My 32-year-old husband died from melanoma just three days after 9/11/01. It was after a 5-year battle that all started with a mole on his back. He was lucid and clear all the way to the very end. Just a few days before he passed, we really had a hard time breathing and relaxing. He was very anxious; walking around a lot, sitting on the toilet or the end of the bed for lengths of time, not being able to sleep. The morning he passed, and after a long night of very restless sleep (or no sleep), he said "call Bob and have him come over, this is the end." (Bob was a personal friend who was also a doctor and had agreed to help at the end stages of Darren's life.) I cried and pleaded and told Darren that we could increase his meds and make it comfortable for him in bed and that we could possibly get a few more months together. He said "it's not going to get any better than this." We spent that day with our three boys and family and close friends and towards the end of the day, Darren slowly went into what I call a 'deep sleep'. He was breathing, but more in a sleep state. Around 4am in the morning, he started breathing wierd. I called Bob in and Bob explained that Darren was taking his last breaths. He went peacefully and quickly.
In hindsight, I am AMAZED at how Darren was able to release himself from his pain and suffering and let go. He was able to let himself die more than I was. And now, having talked to others who deal with death and dying on a regular basis, I have found that my 'death expereince' with Darren was very beautiful and rare.
As Rick notes in another response below, none of us really know when we're going to go and as hard as it may be perceive your sister's situation this way, it's a bit of a blessing to have this time 'before death' to LIVE and cherish and not take for granted, like most of us do. ENJOY your sister right now. Talk about stories and memories and LAUGH. And see if she is willing to share some words about what she wants 'if/when' she passes (and I say this with still much hope for her to live as we can ALL actually sit and have that conversation with our loved ones - the 'if/when' we pass since we will ALL die one day.)
Enjoy every day ... every hour ... every minute as if it were your last.
Blessings,
Rhonda
p.s. - sorry to have written a book here ... your email just really touched me and compelled me to share.