To me, “having at all“ means to be happy and contented with life in terms of my contribution to that life (which includes many people, family, personal, and professional).
It also means to be happy and satisfied with what life has given to me through actions and interconnections that I have with people.
It also means to have been satisfied with what life has built for me not just immediately but over the many years I have been on earth.
There are challenges, there are celebrations, there are people and there have been people over many years with whom I have engaged.
In so many ways I’ve had it all. I did my latter years I’m still having at all.