I think I'm using "higher purpose" differently perhaps a little more loosely?. For me it's just a persons goals/dreams, that reason to live. What is it that will make that purpose happy but more importantly content. That idea of having to acknowledge something greater than our selves, well I know the the universe is greater than me. The laws of physics are greater than me. I'm being facetious. My preference is not to be around people but I do believe in humanity, sometimes anyway, and in my local community and ultimately would like to continue working in fields that I feel contribute to everyone's overall well being. I would think that honestly counts as that anything.
Only half in jest but I like the idea that we are all just humanimals in one great big herd on this planet. We'd be better off if we'd just stuck to grazing in the forest canopies but no, somebody had the bright idea of going bipedal. It's been downhill ever since if you ask me.
I will only say that I have some very deep convictions regarding AA, I do have a year chip from them, but I am not a fan or supporter of them anymore. For reasons I won't discuss, because for me, bit of a trigger for going down a dark angry rabbit hole rant that is only half rational. It's something that I'm working to resolve.