Uttam Tap (Supreme Austerity) is one of the Ten Supreme Virtues (Das‑Lakshan Dharma) in Jainism. It means disciplining body, speech, and mind to burn karmas and purify the soul. The stress is on inner austerity (antarang tap) done with right faith and non‑violence, not on harming the body.

Two main ways of Tap (as taught in Jain scriptures)

• Internal Tap (6)

1) Prāyaścitta – sincere repentance and atonement 2) Vinaya – humility and reverence 3) Vaiyāvr̥ttya – selfless service to ascetics and the needy 4) Svādhyāya – study of scriptures and self‑reflection 5) Vyutsarga – letting go of attachment to body/possessions; calm detachment 6) Dhyāna – pure, steady meditation

• External Tap (6)

1) Anāśana – fasting 2) Unodarī – eating less than hunger 3) Vritti‑saṅkṣepa – limiting number/variety/source of food 4) Rasa‑parityāga – giving up stimulating tastes 5) Vivikta‑śayyāsana (Saṃlinatā) – seclusion/simple seat‑bed 6) Kāya‑kleśa – patiently bearing heat/cold, etc., without anger

Essence

• Do tapas with samyaktva (right faith), ahimsa, and equanimity.
• The highest Tap is internal: cleansing passions, humility, service, study, and meditation. External fasts support this inner purity.

Digambar and Shvetambar notes

• Both traditions accept Uttam Tap as one of the ten supreme dharmas.
• Lists of the 6 internal/6 external tapas are essentially the same; names may vary slightly (e.g., vivikta‑śayyāsana/saṃlinatā). Festive observance differs (e.g., Das‑Lakshan Parva vs. Paryushan focus), but the meaning remains the same.

Simple ways to practice daily

• Keep maitri (friendliness) and forgiveness; reduce anger first.
• Eat simply; observe periodic upvas/ayambil as health allows.
• Limit possessions and comforts; avoid waste.
• Do pratikraman, svādhyāya, and a few minutes of dhyāna daily.
• Serve sādhus/sādhvīs and those in need with humility.

For a concise overview of the 20 tapas (internal and external) as preserved in tradition, see this reference: