When will “I” Die?

A dear friend of mine has flown into Chennai to call upon his ailing critically ill mother. He asked me a question which provoked a tremor in the domain of my wisdom. He asked me”Ramki When will my mother die? I have lot of work in my office overseas and I should be back  home as early as possble. “I looked above at the star studded sky above and replied”I cannot tell you when your mother will die but I can tell you when will “I”die. He was astonished and asked me”When will you die?”I replied”The moment I realise that I am dispensable that moment the “I “in me will die and my existence will become nonexistent”