Dear Public Diary,
I just rewatched a movie called Past Lives. I’m sure many of you already know it, already thought about the ideas it brings up, and maybe already thought about someone from your past. That someone you shared a moment with — a season of life, or even a silence — and then time took you both somewhere else. The film hit me in a way not many do lately, and I had to write about it before the feelings fade or memory softens the edges.
The plot follows two childhood friends in South Korea, Nora and Hae Sung, who were once each other’s world. When they were 12, Nora’s family emigrated to Canada, and their paths split. Years later, as adults, they reconnect online, but life has changed — Nora is now married and living in New York. What could have been a romantic reunion turns into something quieter, more powerful: a meditation on what’s real, what’s imagined, and what could’ve been. The kind of story that doesn’t chase a happy ending but lets life speak for itself.
In a perfect Hollywood formula, they’d run to each other at the airport. She’d leave her husband. They’d reclaim the love that never died. But Past Lives doesn’t offer us that kind of fantasy. Instead, it gives us something rarer — something real. One of my favorite quotes is when Nora tells Hae Sung, “In the next life, maybe.” And in that moment, you feel everything that’s been said and everything that never will be. The love, the loss, the acceptance. No begging for more, no trying to rewrite fate. Just standing still in front of someone who feels like home — and choosing not to move.
It made me think about how powerful the past is — how it shows up when we least expect it, dressed in nostalgia and soft lighting, whispering memories we thought we forgot. The past, I realized, is not just behind us — it lives inside us. The people we once loved, the friendships that faded, the dreams we let go of — they leave fingerprints on our now. Sometimes when someone reappears from the past, we ask ourselves: Should I go back? Should I open that door again? And maybe the most honest answer is: No. Because when you go back, you often lose what you’ve built — and you still don’t get what you lost.
The film made me revisit a thought I keep coming back to: Is it worth giving the past a second chance? And how do you even answer that when your brain only remembers the smiles? Why does memory play tricks on us like that? Why does it mute the heartbreak and turn up the music from that night you danced in the kitchen or laughed until you cried?
There’s a line in the film where Arthur, Nora’s husband, says, “I think I’m just the guy in the middle of the story that you two are trying to finish.” That sentence broke something in me. Because don’t we all feel that way sometimes? That we’re just a placeholder in someone else’s unfinished novel — a safe stop on their way back to someone else?
Personally, I’ve been there. I’ve felt that pull — the curiosity of what could’ve been if I had just turned left instead of right. I’ve let people from my past sneak back in just to see if the ending would be different. But what I’ve learned — sometimes the hard way — is that second heartbreaks hurt more than the first. And when you reopen something that was never properly closed, you invite ghosts in. That’s why I believe, now more than ever, in proper endings. Say what needs to be said. Leave with peace. Not everything needs to be left open just to see if life will write the rest for you.
Past Lives reminded me of something else: how we often shape our present to protect ourselves from the pain of the past. And how sometimes we think the past is safer, only because it’s already known — but known pain is still pain. And just because someone shows up again doesn’t mean they’re meant to stay.
When Hae Sung and Nora finally sit side by side at the end of the film, saying nothing, you feel a lifetime of love and longing pass between them. And then, without a kiss, without a dramatic goodbye, he leaves. And she walks back home to her husband. And nothing feels resolved, but everything is understood.
I don’t know what you’d do if someone from your past knocked on your door tomorrow. But I hope you remember this: You are allowed to move on without revisiting every chapter. You are allowed to honor your past without inviting it back into your present. And you are allowed to feel the pain of letting go without thinking you made the wrong choice.
As for me, I’ve stopped romanticizing what could’ve been. I try to keep my memories honest — not all happy, not all sad. Just real. And if someone from my past ever comes back again, maybe I’ll say what Nora said: “In the next life, maybe.”
Because some stories are beautiful — just not meant to be continued.
As simple as that.
But tell me, would you answer the knock?
