The Mineral and the Glow: Our Call to be Salt and Light
Lent is often framed as a season of "giving up"—chocolate, social media, or that third cup of coffee. But if we look at the metaphors Jesus used in the Sermon on the Mount, Lent might actually be about rediscovering what we are made of.
When Jesus said, "You are the salt of the earth" and "You are the light of the world" (Matthew 5:13-14), he wasn’t just giving a pep talk. He was describing our fundamental nature. Interestingly, modern neuroscience and mental health research suggest that these metaphors aren't just poetic—they are deeply tied to how we function as human beings.
The Spark in Your Cells
Right now, inside your brain, there is a quiet, rhythmic miracle happening. To have even a single thought—to feel the warmth of a memory or the pull of hope—your neurons have to fire. They do this through the movement of sodium in our neurons.
When the Flavor Fades
In the shadows of a long season, we often speak of "burnout" or "numbness"—that hollow space where it feels like the salt has lost its flavor and the light has finally flickered out. But even when you feel most extinguished, your body is carrying a hidden architecture of resilience.
Deep within the center of your mind, right where the optics of your eyes meet the mystery of your brain, sits the suprachiasmatic nucleus. It is basically a tiny "clock" designed for one purpose: to turn the light of the outside world into the rhythm of your inner world. Morning light supports wakefulness and clarity. Evening darkness prepares you for rest. Long before your mood shifts or your energy returns, your nervous system is already moving toward balance. And this is where the metaphor begins to widen. The same processes that sustain you inwardly — the movement of sodium that carries electrical signals, the rhythms shaped by light — are also what make your outward presence possible.
The Salt is the real, physical substance of your life — the effort you give, the tears you cry, the everyday work of being human that keeps you grounded. It’s what allows the spark to move in the first place. And just like the sodium starts the spark, it is sleep, nourishment, movement, purpose, emotional processing that make patience possible. They are what allow clear thinking, emotional regulation, and resilience. When those foundations are supported, your capacity to respond rather than react increases.
The Light is what grows out of that. It’s the place where the internal state you are building becomes outward impact.
Your regulation becomes calm in a tense moment.
Your restored energy becomes engagement with your family.
Your clarity becomes a thoughtful response instead of a sharp one.
Your hope becomes encouragement someone else feels.
It’s the awareness that receives something meaningful and expresses it through kindness, steadiness, and the way you show up. Not something you force, but something that naturally shines when you live in alignment with who you are.
Salt and light aren’t separate roles. The very parts of you that feel most human — effort, limitation, embodiment — are the same parts that make brightness possible. Your groundedness is what allows you to shine.
You Are Enough Exactly as You Are
The most profound part of the verses from Matthew 5 is the word "are." Jesus didn’t say, "If you work hard enough, you might eventually become salt." He said, "You are the salt,” and He didn’t say, “If you do it perfectly, you could possibly be light.” He said, “You are the light.”
Your worth in this world is not based on performance. Salt doesn't "try" to be salty. It just is. Light doesn't "struggle" to be bright; it simply shines because that is its nature. When you are authentic to who and how you were uniquely made, when you are kind to yourself, and when you speak of hope in a world that, at times, is filled with darkness, you are fulfilling your purpose.
Big picture: You don’t have to "become" something better this Lent. You just have to come home to the way you were made. You are the preservative that keeps hope alive in your family and your community. You are the light that helps a friend find their way through a dark season. The calling to be “salt” and “light” isn't a reward for your perfection; it's a recognition of your necessity. You are the mineral and the glow that this weary world cannot do without.
A Final Breath
Take a moment today to simply be. Feel the movement of the salt and the light within you. Breathe into the truth that you are salt, grounded and necessary. You are light, radiant and regulated. And you are held by the One who made you both.
