Ayambil is a Jain external austerity (bahya tapas) focused on mastering taste and attachment to food.

• What it means: Ayambil means eating very simply, typically once a day, with food that is plain and almost tasteless. It usually excludes salt, oil/ghee, milk products, sugar, many spices, and rich items. Water may be consumed at prescribed times. The goal is to practice restraint, reduce attachment to taste, and purify the mind and conduct. ( jainknowledge.com)
• How it is done: Aayambil is observed as a vow (vrat) for a set period (commonly during Navapad Oli, a nine-day observance dedicated to the Navapad/Siddhachakra), with daily one simple meal, plus associated practices like samayik, pratikraman, svadhyaya, and Navapad worship. ( jainknowledge.com)
• Purpose: To purify passions (kashayas), strengthen right faith, knowledge, and conduct, and advance toward spiritual upliftment by disciplining taste and desires. ( jainknowledge.com)
• Digambar vs. Shwetambar note: The essential spirit is the same, but liturgical details differ. Shwetambar emphasis often centers on Siddhachakra/Navapad worship during Ayambil Oli, while Digambar practice may highlight Navapad Aradhana with similar fasting. ( jainknowledge.com)

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