Answer

In Jain tapasya, Ekasana means eating only once in one sitting during the day.

If someone says “Ekasana by purimaddha”, they usually mean doing Ekasana with the rule of eating only within the first half of the day.

Explanation

Purimaddha generally refers to the earlier half of the day.

So, Ekasana by purimaddha means:

• You eat only one time.
• You eat in one continuous sitting.
• The meal is completed during the first half of the day.
• After that, no second meal is taken.

In practical terms, this is stricter than ordinary Ekasana because it adds a time-limit discipline.

Spiritual Understanding

The purpose is not only to reduce food, but to develop:

• self-control,
• restraint over taste,
• discipline of time,
• and awareness toward the soul.

Takeaway

Ekasana by purimaddha means doing Ekasana while completing the one meal in the first half of the day, as a disciplined form of Jain tapasya.