First, my condolences to you and your family.
I lost my Mother back in January. She had a great run and was an extremely strong woman. A couple of nights before she passed, she told me that she was ready to go. Asking for my permission, I told her that if she needed to go that she should. I never left the hospital that day or night. The night was really tough for her, I was told by the doctors and nurses that she will be gone any minute. She was an extremely strong person and she fought all night long. Well she made it through that night and when I woke up her eyes were open and she was coherent. I said "HOLLY SHIT!" and she responded "What?, What happened last night? I don't remember anything." I said "Ma, we almost lost you all the doctors were here saying this is it but you held on. To that she responded DAMN IT! and slapped her hand on her leg...... I had to laugh, and she gave me an annoyed look....