Whenever we hear the word Ekadashi, the first thing that usually comes to our mind is the 11th day of the lunar calendar and the fasting associated with it.

Since Ekadashi is determined according to the lunar calendar, it is natural for many people to assume that the fasting must have something to do with the position of the Moon.

But...

Is Ekadashi fasting really because of the Moon?

Perhaps we can look at it from another perspective.

Is the Moon Really the Reason Behind Ekadashi Fasting?

We know that the Moon exerts a gravitational influence on the Earth.

For example, the Moon's gravitational interaction with Earth contributes to ocean tides.

So it is natural to wonder whether the Moon's position might also have some special influence on our bodies.

But we should be careful here.

There is currently no clear scientific evidence that the Moon's particular position on Ekadashi directly affects our digestive system.

So instead of directly connecting Ekadashi fasting with the Moon's gravitational force, perhaps we can consider a simpler possibility.

Doesn't the Body Also Need a Break Sometimes?

Think about a machine.

If a machine is operated continuously without any rest or maintenance, its performance may eventually decrease.

Our body is certainly not a machine, but some of its systems work continuously.

One of them is our digestive system.

Every day we eat.

Our digestive system processes that food, provides the body with the nutrients it needs, and removes what is not required.

This process continues throughout our lives.

So, from one perspective, the Indian practice of Upavasa can also be understood as an opportunity to periodically give the body—and particularly the digestive system—some rest.

However, Upavasa does not simply mean not eating. Different Indian traditions have different meanings and practices associated with it.

Modern Science Is Also Studying Fasting

Interestingly, modern science is also studying practices such as intermittent fasting and time-restricted eating.

Some research suggests that these eating patterns may have beneficial effects on metabolic health for certain people.

However, the same type of fasting cannot be considered suitable for everyone.

A person's health, diet, type of fasting, and duration of fasting all matter.

Therefore, it would not be scientifically correct to say:

"Fasting on every Ekadashi definitely increases lifespan."

But Why Every Eleventh Day?

This is where my curiosity begins.

Suppose someone had said:

"Eat normally for ten days, and on the eleventh day, give your body a break from food."

The idea itself is simple.

But how would people thousands of years ago remember these days?

Today we have calendars, mobile phones, and reminders.

But people in the distant past did not have these conveniences.

So using a natural calendar may have been a practical way to remember.

Following the Moon to keep track of days would have been a natural method for people at that time.

The 11th tithi of the lunar fortnight is Ekadashi.

So there would be no need to manually count the days.

Ekadashi arrives → Remember that it is the fasting day.

Ekadashi Could Also Be a Natural Reminder for the Whole Family

Here is another interesting thought.

What happens if only one person in a family observes the fast?

For example, if the mother is fasting on Ekadashi but still has to cook for the rest of the family, it could make the practice more difficult for her.

Perhaps the lunar calendar could have provided a way for the whole family to know in advance that the same day was special.

In other words:

"Today is Ekadashi — let's follow some discipline regarding food today."

This could allow the family to adjust their lifestyle together to some extent.

It could turn fasting from something followed by one individual into a practice that the family recognizes collectively.

Again, this is only my personal thought. I am not claiming that this was the historical reason for establishing Ekadashi.

But Why Eleven?

Here I don't have a definite answer either.

Why exactly the eleventh day after ten days?

Was ten chosen because it was a simple number to remember?

Was this interval decided through observations made by people at that time?

Or did Ekadashi have a completely different spiritual or traditional reason from the beginning?

If we don't know for certain...

I think it is better to simply say, "We don't know."

There is no need to create an explanation ourselves and present it as a fact.

Is the Moon the Cause, or Is It Just a Calendar Reminder?

This is where my personal thought begins.

Perhaps the Moon's position is not the physical reason for fasting.

Perhaps the lunar calendar simply became a natural way of reminding people when to fast.

Today, we use calendars as reminders for many things.

We use them to:

Pay electricity bills
Service our vehicles
Schedule health checkups
Perform tasks after a certain period

In the same way, the lunar calendar could have served as a natural reminder to periodically change our eating habits.

Ekadashi arrives → Remember to follow the food discipline.

I find this possibility very interesting.

Is Fasting Good for Everyone?

Not necessarily.

The same type of fasting is not suitable for everyone.

People with certain health conditions, children, pregnant women, breastfeeding mothers, or people taking certain medications should not begin fasting without appropriate medical advice.

So we can respect Ekadashi fasting as a spiritual or traditional practice while also recognizing that health-related decisions should depend on each individual's circumstances.

So What Does Ekadashi Really Tell Us?

What interests me about Ekadashi is not only whether the Moon controls our digestive system or not.

The idea that an ancient society may have created a discipline around food and used a natural calendar to remember a particular day is itself fascinating.

Ekadashi may involve:

A spiritual idea
A discipline
Control over food habits
An opportunity for self-control
A social benefit of allowing the family to follow a common routine on the same day

Or perhaps it could be a combination of all of these.

My Personal Thought

Sometimes I wonder whether we are looking at Ekadashi from the wrong angle.

Instead of asking:

"How does the Moon affect our digestive system on Ekadashi?"

perhaps we should ask:

"Why did our ancestors choose a particular day in a natural calendar and develop a practice of periodically changing their eating habits?"

That seems like a much more interesting question.

Perhaps the Moon is not directly controlling our digestive system.

Perhaps the Moon's cycle simply reminds us when to take a break.

Seen this way, Ekadashi does not have to be viewed only as a religious practice.

It can also be seen as a system that connects food, self-discipline, family lifestyle, and the natural cycles of the world.

Finally

We don't necessarily have to look at Ekadashi fasting only as a religious ritual.

We can see it as a discipline.

As a practice of self-control.

As an opportunity to occasionally change our eating habits.

As a reminder to give our body some rest.

And we can see the lunar Ekadashi as a natural calendar reminder for that practice.

At the same time, if we want to understand exactly why Ekadashi originated and why the 11th tithi was specifically chosen, we need further historical research.

Sometimes, instead of assuming that we already know why an ancient practice exists, it is more interesting to ask: "What might actually be the reason behind it?"

My personal thought: We don't necessarily need to believe that the Moon directly controls our digestive system to understand Ekadashi fasting. We can view fasting as an opportunity for self-discipline, an occasional change in eating habits, and a way of giving the body some rest. The lunar Ekadashi can also be seen as a natural calendar that reminds us when to follow that practice.

# Why Do Indians Fast on Ekadashi?