🔬 The Science of Fasting Where Ancient Siddha Wisdom Meets Modern Nobel Prize Research 🌿 Introduction What if the secrets of cutting-edge science were already known thousands of years ago? Imagine a Tamil Siddha meditating in a mountain cave and a modern scientist observing cells through a microscope—both arriving at the same truth. In 2016, Yoshinori Ohsumi won the Nobel Prize for discovering Autophagy , a cellular self-cleaning process. Yet, this concept mirrors the ancient Siddha practice of fasting, known as Lankanam . This blog explores how fasting is not starvation—but a powerful internal healing mechanism , almost like performing “surgery” without a scalpel. 🔥 1. Two Perspectives: Jatharagni vs. Autophagy 🪔 The Siddha View: Burning “Amam” In Siddha philosophy, health revolves around Jatharagni —the digestive fire. Constant eating = dumping wet wood into fire Weak digestion = formation of Amam (toxins) These toxins accumulate in joints and organs → disease 👉 When you fast, ...
When we think of something “burning,” we imagine flames that need oxygen to stay alive. A campfire, stove flame, or candle—all depend on oxygen in the air.
But deep inside the Earth, there is no oxygen-rich atmosphere, no flames…
Yet the Earth’s mantle remains extremely hot, constantly generating magma (lava underground) and fueling volcanic eruptions.
So how does the mantle stay hot without oxygen?
Does it “burn”?
Is lava the result of fire?
Let’s explore the real science behind Earth’s internal heat—an astonishing story billions of years in the making.
🌍 Fire vs. Lava: They Are NOT the Same Thing
The first thing to understand is this:
🔥 Fire = Chemical Reaction (needs oxygen)
🌋 Lava = Melted Rock (does NOT need oxygen)
Fire is a chemical process where a substance reacts with oxygen.
Lava is simply rock that has melted due to intense heat and pressure — no burning, no flames.
So the mantle and lava are not burning.
They are hot, but not because of fire.
🌡️ So What Keeps Earth’s Mantle So Hot?
Earth's internal heat comes from four major sources:
1️⃣ Leftover Heat From Earth's Formation (4.5 Billion Years Ago)
When the Earth formed, dust and rocks clumped together under massive collisions.
Those impacts generated enormous heat.
Much of that heat is still trapped inside the planet.
Earth cools slowly—very slowly.
2️⃣ Radioactive Decay: The Biggest Heat Source
Inside the mantle, natural radioactive elements like:
-
Uranium
-
Thorium
-
Potassium
are constantly decaying.
This process releases huge amounts of heat—enough to keep much of Earth’s interior molten.
This is NOT burning.
This is nuclear energy, happening naturally.
3️⃣ Pressure From Overlying Layers
As we go deeper into Earth, pressure increases dramatically.
And here’s the key:
When pressure increases, temperature increases.
The mantle stays hot because it is squeezed under thousands of kilometers of rock.
Just like how pressing air in a bicycle pump makes it warm—Earth's pressure cooks the rocks below.
4️⃣ Friction From Tectonic Plate Movement
Earth’s outer shell is broken into plates that constantly move.
When plates:
-
collide
-
slide past each other
-
sink into the mantle
they create frictional heat, adding even more warmth to the system.
🌋 Why Does Lava Come Out of Volcanoes?
Even though the mantle is solid in many places, it behaves like a slow-moving, hot, plastic-like material.
But when:
-
pressure drops,
-
plate boundaries stretch, or
-
hotspots rise toward the surface,
the rock melts into magma.
This magma rises because it is lighter (less dense) than solid rock.
When it reaches the surface, it erupts as lava.
No oxygen is needed.
No flame is involved.
Just pure heat + pressure + geology.
🔥 Why Lava Glows Like Fire (But Isn’t Fire)
Lava glows red, yellow, or white because of high temperature, not combustion.
Just like:
-
heated metal
-
molten iron
-
the Sun’s surface
they glow due to incandescence, not burning.
🧠 Final Conclusion: The Mantle Does Not Burn
The Earth’s mantle isn’t on fire.
It doesn’t need oxygen.
Instead, it stays hot due to:
🌋 Radioactive decay
🌋 Ancient heat from Earth’s formation
🌋 Enormous pressure
🌋 Tectonic friction
This internal heat is what powers volcanoes, creates continents, and keeps our planet geologically alive.
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