I used to work at a Sam's Club and you could always tell the first timers. They'd be standing out front with a dazed look on their face with a year's supply of toothbrushes and a vat of mayo in their cart.
In these 70 years, you have everything. It will be there always, those are your 70 years. You can't envisage that without you, you can't envisage those 70 years from a point of view outside them in which you are not. Any perspective you can have on them is a perspective which will show them to be eternally there with you, and you'll never lose them except by losing yourself.