Also personally I discovered there’s a bunch of foods I ate that cause me to start ruminating about things like that. So that helped some.
My family and children are also the center of my life, but be careful how you interpret these anecdotes and advice from others.
I've seen multiple friends seek out building a family aggressively, with unfortunately disastrous results.
Family can be a source of purpose and energy, but it can also be a drain of energy and locus of misery. There's nuance in how you approach it, who you are, and your circumstances. If you try to force building relationships and family for your own fulfillment, be aware that it can be very difficult to change your mind, especially if you have children. You should also think about whether it is ethical to bring people into existence if you yourself are wondering what the point is.
So, while family giving a sense of purpose is true for me and others, you probably shouldn't force that sort of thing, so that information is not practically useful.
And if there is nothing obvious then my mind starts to dig deeper and deeper.
Maybe there is some sort of memory/emotional association here as well.
https://www.frontiersin.org/articles/10.3389/fendo.2021.7482...
Turns out it was asparagus. Go figure.