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worship and ritual

What is the significance of Ekadashi fasting and why is it observed twice a month?

Ekadashi is the eleventh day of each half of the lunar month, observed as a fast day dedicated to Vishnu. It falls twice a month because the Hindu calendar has two fortnights, one waxing and one waning.

What Ekadashi means

The word Ekadashi simply means eleven in Sanskrit. It falls on the eleventh day of the bright fortnight, when the moon is growing, and again on the eleventh day of the dark fortnight, when the moon is shrinking. That is why it comes around twice every lunar month. The day is closely tied to Vishnu. The tradition holds it as his special day, a time when the mind is thought to be more open to prayer and devotion. Puranic tradition, especially the Ekadashi Mahatmya found in the Padma Purana, gives each of the Ekadashis its own name and its own story. There are around twenty-four named Ekadashis across the year, with some traditions counting a few more in leap months.

The story behind it

One well-known story from Puranic tradition tells of a demon named Mura who could not be defeated. Vishnu fought him for a long time and rested in a cave. While he slept, a goddess emerged from his body and destroyed the demon. Vishnu was pleased and named her Ekadashi, saying that whoever fasts and worships on her day would be dear to him. This story is one reason the day carries such weight, especially in Vaishnava households. Different regions and lineages may tell the story in slightly different ways.

The fast and what it involves

The fast on Ekadashi is not always a complete fast. Many people give up grains and especially rice, which the tradition treats as particularly off-limits on this day. Some eat only fruit, milk, and certain roots. Others fast completely. The avoidance of rice is explained in different ways across traditions, but the common thread is that the body and mind are kept lighter so that attention can turn toward prayer and devotion. The day is often spent chanting, reading scripture, and staying awake through the night in some households. Breaking the fast happens on the twelfth day, called Dwadashi.

Who observes it today

Ekadashi fasting is especially strong among Vaishnavas, those who follow Vishnu or Krishna as their primary deity. ISKCON communities around the world observe it closely, which has brought the practice to Hindu diaspora communities far from India. But it is also kept in many non-Vaishnava households as a general devotional habit. How strictly people observe it varies widely, from a full grain-free fast to simply eating lightly and spending more time in prayer. Some families have kept the custom for generations without knowing every detail of its origin, simply treating it as a regular rhythm of the month.

How we write. We describe what the tradition holds, drawing on its texts and customs in general terms. We do not give religious, medical, or dietary advice, and we note plainly where there is no scientific evidence. Reviewed for accuracy by our editorial team.