@Disney1fan2002 I am seeing this thread for the first time and as others have posted, there are just no words to express how deeply sorry I am for your families multiple losses and tragedies. I pray for your sister's speedy recover so she can get on that ship and let the magic of Disney and the ocean help heal her from head to toe (and all of your family).
I am also very glad to hear she is still determined to go on the cruise. Reading your thread has, just like others have said, brought me to tears. It has brought back memories of my own, and I can say from personal experience, the cruise will do her and the rest of your family good.
October 2 years ago my mother went in for hip replacement the Sunday before we were to leave on a 7 day cruise on the Fantasy. My brother and I had both begged her not to do it; we both had bad feelings and I kept telling her I am going on vacation that week, just wait. But she would hear nothing of it. Well, I said goodnight to her the evening before the surgery and that was the last time I spoke to her. She went through the surgery fine, but something happened on her way to recovery. She went without oxygen for an extended period of time and was in a coma. To help prevent brain damage they put her in hypothermia and it took 3 days to 'warm her back up'. DH and I ended up driving to TN from Florida to be there for a couple days, with the hope we would get good news and to get my dad set because my mom handles the household finances. There was no fast recovery, they said it would take time. We came back home and my brother took over. I was ready to cancel the cruise. We had insurance and there was no way I could go without her beginning to recover.
We canceled that cruise, but rebooked another one for a month later, assuming she would be on some kind of road to recovery. But then the answer came 10 days later, permanent brain damage, her body was fighting everything they did and her heart started to have issues and her blood pressure was in the 300's both numbers. She passed away that evening. My family was devastated, and I had lost my best friend. We traveled back to TN for the funeral and to help my dad with the paperwork and to ensure he could handle everything on his own. DH and I were both ready to cancel the new cruise - I thought it was wrong to go have a good time after all that had happened and honestly didn't think I could actually mentally make the trip. Everyone insisted we go, including my Dad and my job actually threatened to lock me out of my office if I didn't go.
Fast forward to cruise day. It was bittersweet getting on that ship. Then just after we get on I received several text messages from friends... there was an annual picnic going on at a club I belong to where I am in charge of their largest annual event. Well, at the picnic I had been named club member of the year. It was such a huge honor, and the first thing I wanted was to call my mom to share it with her... which was when I had my first of several "moments" while on that cruise. But the moments passed and happier moments took over because I was in my happy place. When the cruise was over, I was so glad I went and so was DH. We were able to get some rest, have time to heal and make new memories. And during one of my moments, we met 2 couples who were nearby and one had lost her mom. We sat and talked, and we have stayed friends after the cruise and I thank my mom for the introduction.
The best advice I received after my mom passed was when the urge to cry hit me.... CRY. It is part of the healing process... and the moment will pass. So, if your sister, or you feel the need to cry, let it happen, and when you are done, go on to make a new beautiful memory to replace it.
I hope you keep us informed on your sister's progress, and also a full report after the cruise.