Are there communities or resources where people can share and find comfort in their experiences with loved ones who have passed from cancer?

Is there anyone here who ever cried from happiness? If so, what was it that made you so happy to the point that you cried and why? So far I've only seen that happen on TV.
How come obits and eulogies always describe a person being of good standing with everything when it’s an extraordinary loss to those closest to them and they most definitely have unfinished business?