Next birthday I shall be 73. Both my dad and granddad died in their sixties. I could die tomorrow or live for many years.
On the balance of probabilities I probably have not got many years left. Certainly I am more aware than ever that the years are passing by.
Some of the things I could so easily do are now impossible. I am giddy all the time and driving is no longer a pleasure.
Someone once advised me to enjoy things before it is too late. Maybe they are right. One thing is certain: the future is unknown.