When you’re lying awake at 3 AM questioning everything, you’re not alone. That gnawing feeling—the existential crisis that whispers, “What’s the point?”—has plagued humanity for millennia. But here’s where it gets intriguing: two major philosophical camps offer radically different answers. Nihilism tells us life is meaningless. Existentialism says meaning is ours to create. Understanding the difference might just transform how we approach happiness and personal growth.

What Is Nihilism?

Nihilism, derived from the Latin word “nihil” (meaning “nothing”), argues that life has no inherent meaning, purpose, or value. Nineteenth-century philosopher Friedrich Nietzsche famously declared, “God is dead,” capturing nihilism’s central claim: traditional sources of meaning—religion, morality, and objective truth—are illusions.

 “If we believe in nothing, if nothing has any meaning, and if we can affirm no values whatsoever, then everything is possible and nothing has any importance.” —Albert Camus

For nihilists, the universe isn’t concerned about our dreams, relationships, or accomplishments. When faced with the vastness of space and time, our individual lives appear insignificant. This philosophy suggests that pursuing happiness or fulfillment is ultimately futile because nothing matters in any objective sense.

The nihilistic worldview can feel liberating to some—if nothing matters, then failure doesn’t matter either. But for most people, nihilism leads to despair, apathy, and a profound sense of emptiness. When we strip away all meaning, what’s left to motivate our actions or connections?

What Is Existentialism?

Existentialism emerged as a philosophical response to nihilism’s bleak landscape. Thinkers like Jean-Paul Sartre, Simone de Beauvoir, and Albert Camus agreed with nihilism on one crucial point: life has no predetermined meaning. But here’s the pivot—existentialists define this view as the beginning of the story, not the end.

Sartre famously proclaimed that “existence precedes essence,” meaning we exist first and define ourselves through our choices afterward. There’s no cosmic instruction manual, no predetermined purpose handed down from above. And existentialists argue this is actually beneficial news.

“If I do not choose, I am still choosing.” —Jean-Paul Sartre

Without inherent meaning, we possess radical freedom. We’re not constrained by destiny or divine plans. Instead, we become the authors of our lives, responsible for creating meaning through our actions, relationships, and commitments. This is where existentialism diverges sharply from nihilism: the absence of inherent meaning becomes an invitation to authentic living rather than despair.

The Critical Difference: Response to Meaninglessness

Both philosophies acknowledge that the universe doesn’t provide us with a ready-made purpose. The fundamental difference lies in our response to this reality.

Nihilism stops at meaninglessness, concluding that nothing we do matters. This perspective is akin to giving up and abandoning the pursuit of life.

Existentialism starts where nihilism stops. It says, “Yes, there’s no cosmic meaning—so let’s create our own.” It transforms the existential crisis from a dead end into a starting line.

Think of it this way: nihilism sees an empty canvas and declares art impossible. Existentialism sees the same canvas as infinite possibility.

Implications for Happiness and Fulfillment

These philosophical differences have profound practical implications for our personal growth and well-being.

Research in positive psychology suggests that meaning-making is crucial for happiness. People who feel their lives have purpose report greater life satisfaction, resilience, and psychological well-being. Here’s where existentialism aligns beautifully with contemporary science: creating meaning through chosen commitments and authentic relationships directly contributes to fulfillment.

Nihilism, conversely, correlates with depression, anxiety, and disconnection. If we genuinely believe nothing matters, motivation evaporates. Why nurture relationships, pursue goals, or develop our potential if it’s all meaningless anyway?

Existentialism acknowledges life’s inherent absurdity while championing engagement with it. Camus illustrated this through the myth of Sisyphus—eternally pushing a boulder uphill only to watch it roll down again. Rather than succumbing to despair, Camus argued we must imagine Sisyphus joyfully, finding meaning in the struggle itself.

Finding the Path Forward

If you’re experiencing an existential crisis, you’re actually in good company with some of history’s greatest thinkers. The question isn’t whether life has prepackaged meaning—it doesn’t. The question is what we’ll do with that reality.

Existentialism offers a framework for authentic personal growth: identify what genuinely matters most, commit to those values, and act accordingly. Our relationships, creative pursuits, and contributions to others have meaning, even though the universe didn’t assign it. They’re meaningful precisely because we chose them.

The meaning of life isn’t something we discover like a hidden treasure. It’s something we construct through deliberate choice, authentic connection, and committed action.

While nihilism may feel intellectually honest, existentialism proves more psychologically sustainable and scientifically supported. Purpose isn’t a cosmic given—it’s a human creation. And that makes it no less real or powerful.

Resources for Continued Exploration:

• Man’s Search for Meaning by Viktor Frankl—A Holocaust survivor’s profound exploration of finding purpose in suffering
• The Myth of Sisyphus by Albert Camus—The definitive text on absurdism and choosing engagement over despair
• Existentialism Is a Humanism by Jean-Paul Sartre—An accessible introduction to existentialist freedom and responsibility
• At the Existentialist Café by Sarah Bakewell—An engaging, readable history of existentialist thinkers and their ideas

Like what you’re reading? Want more consciously prepared brain food?

Listen to this Harvesting Happiness episode: Nihilism vs. Existentialism: Is Life Meaningless or Full of Purpose? with Mark Fabian, PhD, or wherever you get your podcasts. 

Get “More Mental Fitness” bonus content by Harvesting Happiness on Substack and Medium.

Meet Our Guest:

Keep Reading:

• Facing the Unavoidable: How Trauma Touches Us All
• The Happiness Blueprint: Your Strategic Guide to Designing a Life of True Fulfillment
• Philosophy as Medicine: When Life Gets Weird, Get Wise
• Keys to a Truly Satisfying Life: What Research Reveals About Unlocking Lasting Happiness and Inner Peace
• Why Hannah Arendt’s Historical Wisdom Is Exactly What We Need for True Happiness Today