90-year-old grandmother’s life lesson that made her granddaughter emotional

(1)Grandma, I’ll never forget it
(2)What’s the lesson you don’t want me to learn
(3)When the door closes
(4)The lesson is that windows open
(5)That’s really true
(6)So, in the closed door
(7)Don’t focus. Use a knife
(8)Look for an open window