I am sitting on the sand while my three beloved grandchildren run in and out of Lake Erie’s waves at Cleveland’s Huntington Beach. I’ve taken the day off work to savor our time together. I never even think to open the book I brought. Instead I am watchful while at the same time caught up in my own wonderings, the way elders have surely been for millennia.

From even a short distance every wet head bobbing up in the water is dark, every happy shout is unintelligible. Time shifts the way it sometimes does. This scene could just as easily be 100 years ago, when Cleveland Metroparks made this beach a public recreation area and summer-weary families came here to cool down. This could be hundreds of years ago, the shoreline rimmed by huge sycamore trees, land crisscrossed by bison trails, with the Erie peoples’ large palisaded villages a short walk away. This could be a thousand years ago, another grandmother sitting near the water’s edge.

I’m reminded how fully alive each person is in each era in every part of the world. A prehistoric teenaged boy proudly shared his first big kill with his tribe, strutting just a little as he went to sit by the fire with a full belly. A pregnant Norte Chico woman leaned back gratefully to let others braid her hair in what we now call Peru. Old men gossiped about their neighbors as they relaxed near a fountain in ancient Beijing. A Berber trader worried his load of goods might fetch less than the expected price when he reached the marketplace. A little Victorian-era girl gleefully tattled on her brother for cursing.

It seems strange that we don’t see our lives as an unbroken continuum with everyone who ever lived or will live. It seems impossible we aren’t fully aware that the person behind us in line at the store or the person continents away knows same thirst and same hunger we do; feels the same emotions as we do; wants to have a life of meaning as we do. Well into a future I hope is a kind and healthy one, people will surely be sitting in this same spot savoring a summer day.

Right now sunlight glints off the water. A line of ducks passes in a perfect procession. When the kids come to towel off I tell them I’m thinking this scene could be from any era — just happy people playing as people like to do. I am brought back from my musings by a child. This one points to the teenagers who just arrived and says,  “It couldn’t be any moment in history, Nana, because they brought Super Soakers.”