When I Reflect With Serious Sense, While Years And Years Run On, How Soon I May Be Summoned Hence - There'S Cook A-Calling John. Our Lives Are Built So Frail And Poor, On Sand And Not On Rocks, We're Hourly Standing At Death'S Door - There'S Some One Double Knocks. All Human Days Have Settled Terms, Our Fates We Cannot Force; This Flesh Of Mine Will Feed The Worms - They're Come To Lunch Of Course! And When My Body'S Turned To Clay, And Dear Friends Hear My Knell, Oh Let Them Give A Sigh And Say - I Hear The Upstairs Bell!