Answer

In Jain tapasya terms:

• 7 Ekasana means eating only once a day for 7 days, following the rules of Ekasana.
• 1 Upavas means complete fasting for 1 day, usually without food, and traditionally with renunciation according to one’s capacity and tradition.

So together, 7 Ekasana and 1 Upavas is a tapasya where a person observes seven days of one-time eating and one day of fasting.

Explanation

Ekasana generally means:

• Eating only once in the day
• Sitting in one place for the meal
• Eating within the proper time and discipline
• Avoiding repeated eating, snacking, or drinking items outside the accepted rules of that vow

Upavas means fasting, where the person gives up food for spiritual purification, self-control, and reduction of attachment to taste and body comfort.

Spiritual Understanding

This tapasya is not only about eating less. In Jain Dharma, the deeper purpose is:

• Control over desires
• Reduction of attachment to food and taste
• Practice of discipline and patience
• Purification of karma through tapas
• More time for samayik, pratikraman, jaap, swadhyay, and inner reflection

Takeaway

7 Ekasana and 1 Upavas is a meaningful Jain austerity combining controlled eating and fasting. It should be done with proper understanding, humility, and according to one’s health, capacity, and guidance from elders or guru bhagwant.