Dealing with Sibling Rivalry

Rebecca. Forty-two. Eight months of silence with her brother David. Not since that dinner. Their mom’s birthday. He made a comment about her career. That tone. The same one from childhood when he aced tests and she… didn’t.

Here’s the thing. They’re grown now. Rebecca manages twelve people. David teaches physics. Both doing well. Completely different paths. Yet every family event becomes… this. A competition she never signed up for. But there she is at 2 AM. Replaying conversations. Crafting better comebacks. Wondering why she still cares so much.

Her friends? Weekend photos with siblings. Real affection. Inside jokes. She watches and feels that familiar ache. Why can’t we have that? What’s broken in us? Maybe nothing’s broken. Maybe it’s just… this wound. From being compared. From parents who meant well but created something they didn’t intend.

Sibling rivalry surviving into adulthood—it’s so old it shows up in the first stories humans told. Cain and Abel. Jacob and Esau. That prodigal son and his resentful brother. We’ve wrestled with this for millennia. Which means people smarter than us had thoughts about it.

You’re not the first to carry this

Voices Across Time

Four philosophers, different eras, different continents. All understood what happens when the people who shared your childhood become the people who trigger your deepest insecurities. They didn’t have easy answers—nobody does. But they had frameworks. Ways to think about why this hurts so much. And what might actually help.

“You have power over your mind—not outside events. Realize this, and you will find strength.”

Marcus Aurelius — Roman Emperor, 121–180 CE
Meditations

Marcus wrote his Meditations while ruling Rome. But he also wrote about difficult family members. About people who didn’t meet his standards. That urge to judge, correct, win. His insight? You can’t control David’s behavior. Can’t make him see you differently. Can’t rewrite childhood or force him to finally acknowledge your worth. The only thing—the only thing—you actually control is how you interpret his actions. When David makes that dismissive comment, Marcus would ask: is he attacking you? Or are you re-experiencing every dismissal from age seven to seventeen in this one moment? The pain is real. But maybe ninety percent of it is the story you’re telling yourself. About what his words mean. About your worth. You have power over that story. Not over him. The story. That’s where freedom lives.

“We suffer more often in imagination than in reality.”

Seneca understood something crucial. Most suffering happens in your head. Long after the actual event. David said one sentence at dinner. One. Rebecca has replayed it five hundred times. Each time adding layers. What he really meant. What she should have said. What this reveals about their entire relationship, their childhood, everything. Seneca would point out: you’re not upset about dinner anymore. You’re upset about the story you constructed about dinner. The imagined version where he deliberately tried to undermine you. Where this proves he’s always seen you as less than. Where you’ll never escape being the struggling older sister. That story? It causes more pain than anything he actually said. What if… what if you just let dinner be dinner? One awkward comment. Not evidence of your entire family narrative.

“Holding onto anger is like drinking poison and expecting the other person to die.”

BuddhaDhammapada

Buddha’s teaching on anger was radical then. Still is. The problem isn’t that David wronged you. The problem is you’re holding onto the wrong like a hot coal. Waiting for the right moment to throw it back at him. Except the coal is burning your hand. The whole time. Rebecca’s eight-month silence—it’s not hurting David. Maybe he barely noticed. But it’s eating at her. The rehearsed confrontations. The imagined vindication. That fantasy where he finally apologizes and she gets to reject it. Buddha calls anger a second arrow. David shot the first one with his comment. You’re shooting all the others into yourself. By replaying it. Endlessly. The compassionate thing to do—for yourself, not even for him—is put down the coal. Not because he deserves it. Because you deserve to stop burning.

Epictetus was a slave for years. Which gave him perspective on what actually robs you of dignity. His take? The problem isn’t David disrespecting you. It’s that you’ve given him power to define your worth. Every time you check whether he acknowledged your success. Every time his opinion determines how you feel about yourself. You’re enslaving yourself to his judgment. Think about it. He was born into the same family. Watched the same parents play favorites. Absorbed the same dysfunctional patterns. Why would you expect him to be the clear-eyed judge of your value? Epictetus would ask: what changes if you truly accept that David will probably never see you how you want to be seen? And that’s… okay. Because his opinion isn’t the measure of your life. The rivalry only continues if you keep competing. You can just stop.

“It is not events that disturb people, it is their judgments concerning them.”

Epictetus — Greek Stoic philosopher, 50–135 CE
Enchiridion

What connects them

What they all understood

sibling rivalry - ancient wisdom for family peace

Here’s what they all saw. Sibling rivalry persists not because of what happened at dinner. Not even because of childhood. It persists because we keep giving the past power over the present. Marcus says control your narrative. Seneca says stop torturing yourself with imaginary versions of events. Buddha says holding anger only hurts you. Epictetus says you’re the one giving them power to wound you.

They’re all pointing at the same truth. The rivalry lives in your mind more than in reality. Which is actually good news. Because it means you have more power than you think. Not power to change David. Power to change what his behavior means about you. That’s the only power that matters anyway.

Before you go

A Moment for You

If you’re lying awake replaying old arguments. If you’re dreading the next family gathering. If you’re still trying to prove something to someone who may never give you the validation you crave… maybe this is your invitation. Put down the hot coal. Not because they deserve it. Because you do. For guided meditations on releasing old family patterns, explore InnerCalm+.

This content is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. If you’re struggling with mental health issues, please consult a qualified healthcare provider.

This post is also available in: Dutch French German Spanish