The indominable heart

So here I am, a few days helping to look after mother. She is ok....but at the stage where she really wants to "go" - but the heart just won't stop beating. What a constitution....tonight the brother and sister-in-law have gone out so yrs truly is the primary care-giver. Thanks to a detailed 2-page missive from the sis-in-law, I think I can cope. What is a geophysicist doing as a nurse-maid to a 99yr old??? Answer - it's your mother, idiot! Just do it! Will I be as lucky to be so looked after when my functions start to run down? Anyone out there have advice? Anyway, here we sit in front of the fire, mother enjoying the quiet as everyone else is out. HELLLLLLLLP!!