A message came in this morning that I haven’t been able to stop thinking about.
It was about camping, of all things. The writer described an old trick campers have used for generations: when you break camp, you lay your clothes out on top of the tent. Not to dry them — to let the sun kill the bacteria in them. The sunlight does the sanitizing. No soap, no machine, no chemicals. Just light.
That little trick has stayed with me all morning, because the more I turned it over, the more places it led. The first place it led was all the way back to Genesis 1:3 — “And God said, Let there be light: and there was light.”
Light was the first thing God made. Before the plants, before the animals, before us. And thousands of years before anyone owned a microscope, His Word was already telling us where life comes from — and what cannot survive in the light.
The Old Wisdom Was Right
Our grandmothers knew this without ever being told why. They hung the bedding over the line on washing day and let it bake in the sun. They aired out the sickroom and pulled the curtains wide open. When someone had been ill, the quilts went outside.
They would have told you it “freshens” things. What’s actually happening is that sunlight — especially its ultraviolet portion — breaks down bacteria, viruses, and mold at the level of their own structure. They can’t repair themselves fast enough, and they die. Hospitals figured this out too: Florence Nightingale noticed that patients in bright, sunlit wards recovered better than patients kept in the dark, and she rearranged her hospitals around it.
Sunlight disinfects. It always has. The campers with their clothes on the tent are simply doing what the clothesline did, what the open sickroom window did, what creation has been doing since the third verse of the Bible.
Light Was Made First for a Reason
Here is what strikes me about Genesis 1:3. God didn’t start with food. He didn’t start with water. He started with light — and then everything else was built to live in it.
Your body still runs on that design. Morning light landing on your eyes sets your internal clock, which governs your sleep, your hormones, your digestion, and your energy through the day. Sunlight on your skin is how your body makes vitamin D, which supports your immune system and your bones. Time in the sun lifts mood in a way every one of us has felt walking out of a dark house into a bright morning.
We spend a lot of time on this site talking about what the body was designed to eat. But the body was also designed to live in the light. An indoor life — curtains drawn, screens glowing, sun avoided — is as far from the original design as an indoor diet is.
Darkness Grows Things
Now turn it over and look at the other side, because this is where the dots kept connecting for me.
Mold doesn’t grow on the sunny windowsill. It grows in the dark, damp corner of the basement. Bacteria don’t multiply on the line in the July sun. They multiply in the closed gym bag, the shut-up room, the bedding that never gets aired. Darkness is where things grow that shouldn’t.
Jesus said, “I am the light of the world: he that followeth me shall not walk in darkness, but shall have the light of life” (John 8:12). And Paul wrote that “all things that are reproved are made manifest by the light” — everything exposed by the light becomes visible (Ephesians 5:13).
What is true of the tent is true of the heart. The things we keep in the dark — the worry we won’t speak out loud, the resentment we’ve folded up and put away, the habit nobody knows about, the grief we’ve never handed over — those things grow in the dark exactly the way mold does. Hidden things don’t stay the same size. They spread.
And the remedy is the same remedy. Not scrubbing harder. Not managing it better in the dark. Bringing it into the light — before the Lord, and often before one trusted person — where it loses its hold. Every one of us who has finally spoken a hidden thing out loud knows the feeling: it shrinks the moment the light hits it.
Simple Steps to Live in the Light
None of this requires a program. It requires curtains, a clothesline, and honesty. Here is where we’d start:
- Open the curtains first thing. Let the light into the rooms you live in. It costs nothing and it changes the whole feel of a home — and of a morning.
- Get outside early. Ten to twenty minutes of morning light, most days. Before the sunglasses go on if you can. Your sleep tonight starts with the light you get this morning.
- Sun the bedding. On a dry, sunny day, hang the pillows, quilts, and blankets outside for a few hours. Do the same with anything that’s been closed up — the sleeping bags, the winter coats, the tent.
- Air the closed rooms. The guest room, the basement, the closet that never opens — give them light and moving air regularly. Dark, still, damp is the combination that grows things.
- Bring one hidden thing into the light. Just one. Take it to the Lord plainly, by name. If it needs a human ear too, choose someone trustworthy and say it out loud. What is exposed by the light becomes visible — and what becomes visible can finally heal.
Your body was built to heal — and light, inside and out, is part of the environment healing was designed to happen in.
Questions We Hear Most Often
Q: Does sunlight really kill bacteria?
A: Yes. The ultraviolet portion of sunlight damages bacteria, viruses, and mold at the structural level, and most of them can’t survive extended direct exposure. It’s why generations of families sunned their bedding and aired sickrooms, and why campers still lay clothes on the tent to sanitize in the sun. Sunlight is a genuine disinfectant, not just a freshener.
Q: How long does bedding need to sit in the sun?
A: A few hours of direct sun on a dry day does real work — flip or rearrange partway through so both sides get light. This is a rhythm, not a one-time deep clean: bedding that gets sunned and aired regularly stays fresher than bedding that never leaves a dark room.
Q: Isn’t the sun dangerous? We’ve been told to avoid it.
A: The sun deserves respect, not avoidance. Burning is the harm to avoid; regular, sensible time in the light is part of how the body was designed to work — setting your internal clock, making vitamin D, lifting mood. Get your minutes in the morning and cover up or come in before you burn.
Q: What does Genesis 1:3 have to do with health?
A: Light was the first thing God created — before food, before water, before us — and everything living was designed to live in it. Morning light governs your sleep and energy, sunlight on skin makes vitamin D, and sunlight itself destroys the microbes that grow in darkness. The design and the Word agree.
Q: What does “walking in the light” mean in a practical, daily way?
A: It means keeping short accounts — not letting anything live hidden. Practically: bring what’s troubling you to the Lord by name rather than carrying it silently, and let one trustworthy person into what you’d rather keep in the dark. Hidden things grow; spoken things shrink. That’s not just a spiritual principle — it’s how darkness works everywhere.
The Whole Practice on One Page
If you’d like this as a rhythm rather than a one-time idea, we put it on a single page — what to sun daily, weekly, monthly, and seasonally, and the one habit for the other half. It’s free, and it’s made for the laundry room wall.
A Quiet Place to Step Into the Light
And if your life has become an indoor life — curtains drawn in more ways than one — sometimes the kindest thing you can do is step away for a week and let the light back in on every level. Our Hallelujah Diet Health Retreat begins its mornings outdoors for exactly this reason. You may explore whether a week there is what this season is asking for.
You Might Also Like
We offer these teachings freely to support clarity, stewardship, and responsible care. If this article was helpful, you may explore additional resources here:
- MyHDiet.com — plant-based nutrition, enzymes, detox foundations
- WipeOutToxins.com — toxin-free living and prevention
- CleanseYourBlood.com — circulation and blood-flow support
- AMPMForHealth.com — daily support essentials
- HealthRetreat.com — Hallelujah Diet Health Retreat
Thank you for being part of a community committed to thoughtful, responsible care.
