When someone dies we want to honor them. You did this in a very real and touching poem. Some say, forget, don't think of the past. We try not to recall the suffering our loved ones endured, but sometimes we must acknowledge the pain that was so real to them. And then we can rest.
It is always sad for us when a friend crosses over but there is also a sense of relief when we know that their suffering has finally come to an end. I am so sorry for your loss, may she rest in peace.