In Jainism, the "21 guṇas (virtues or observances) of a śrāvaka" refer to twenty-one essential qualities or codes of conduct that an ideal Jain lay follower (śrāvaka) is encouraged to cultivate and observe. These are supplementary to the main vows (aṇuvratas) and help a śrāvaka progress spiritually.

Here are the 21 guṇas of a śrāvaka:

1. 5 Aṇuvratas (Lesser Vows):

1. Ahiṃsā aṇuvrata (Non-violence) 2. Satya aṇuvrata (Truthfulness) 3. Asteya aṇuvrata (Non-stealing) 4. Brahmacharya aṇuvrata (Chastity, or control over sensual pleasures) 5. Aparigraha aṇuvrata (Non-possession or non-attachment)

1. 3 Guṇa-vratas (Meritorious Vows):

6. Digvrata (Limiting movement to certain directions/areas) 7. Bhogopabhoga-parimana (Limiting consumption and enjoyment) 8. Anartha-danda-viramana (Avoiding purposeless sins)

1. 4 Śikṣā-vratas (Disciplinary Vows):

9. Sāmāyika (Equanimity for a set period) 10. Deśāvakasika (Limiting activities to a certain place and time) 11. Prosadhopavāsa (Fasting on prescribed days) 12. Atithi-samvibhāga (Offering alms to worthy ascetics)

1. 6 Daily Essential Duties (Ṣaḍāvaśyaka):

13. Sāmāyika (Practicing equanimity) 14. Chaturvimshati-stava (Worshipping the 24 Tirthankaras) 15. Vandana (Respecting ascetics) 16. Pratikramana (Repentance and introspection) 17. Kayotsarga (Meditative abandonment of the body) 18. Pratyākhyāna (Renunciation or taking vows for a period)

1. 3 Additional Qualities:

19. Dana (Charity) 20. Sheela (Morality) 21. Tapas (Austerity or penance)

Summary Table:

| Group | Number | Names (in Sanskrit) | |-------------------------|--------|-----------------------------------------------------| | Aṇuvratas | 5 | Ahiṃsā, Satya, Asteya, Brahmacharya, Aparigraha | | Guṇa-vratas | 3 | Digvrata, Bhogopabhoga-parimana, Anartha-danda | | Śikṣā-vratas | 4 | Sāmāyika, Deśāvakasika, Prosadhopavāsa, Atithi-samvibhāga | | Ṣaḍāvaśyaka (daily) | 6 | Sāmāyika, Chaturvimshati-stava, Vandana, Pratikramana, Kayotsarga, Pratyākhyāna | | Additional qualities | 3 | Dana, Sheela, Tapas |

These 21 guṇas guide a śrāvaka toward a disciplined, ethical, and spiritually uplifting life in accordance with Jain principles.