Indeed, death is an inevitable part of life. I believe it is important that we be at peace with that reality, and enjoy life as much as possible, while we are here.

Sounds like your Granny got to leave in a peaceful manner, and sounds like it was definitely not due to long illness, so in a way that is beautiful, much like the way my auntie died. Sadly, so many elderly (at least here in the US, and also in many parts of Europe) end up in an old folks home where they are aritifially kept alive long past the time they have lost interest in life.