We enshrine things to memory very differently than we experience them in real time. The psychologist Daniel Kahneman has coined a couple of terms to make the distinction. He talks about the "experiencing self" versus the "remembering self.

And if that's the case -- if we are our remembering selves -- then it matters far less how we feel moment to moment with our children. They play rich and crucial roles in our life stories, generating both outsize highs and outsize lows. Without such complexity, we don't feel like we've amounted to much. "You don't have a good story until something deviates from the expected," says McAdams. "And raising children leads to some pretty unexpected happenings.

Drawing from 1.7 million Gallup surveys collected between 2008 and 2012, researchers Angus Deaton and Arthur Stone found that parents with children at home age fifteen or younger experience more highs, as well as more lows, than those without children... And when researchers bother to ask questions of a more existential nature, they find that parents report greater feelings of meaning and reward -- which to many parents is what the entire shebang is about.

Even when our children are still young and defenseless, we feel intimations of their departure. We find ourselves staring at them with nostalgia, wistful for the person they're about to no longer be.

You don't have a good story until something deviates from the expected," says McAdams. "And raising children leads to some pretty unexpected happenings.