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Chapter Summary
Arjuna opens with the question that links Chapter 16 to Chapter 17: what about those who act with faith but without following scriptural injunction — Sattvic, Rajasic, or Tamasic? Kṛṣṇa answers by showing that faith itself takes three forms corresponding to the three Guṇas. He then applies the same tripartite analysis to food, sacrifice, austerity, and charity — showing how the quality of the Guṇa that predominates determines the quality of every aspect of the practitioner's life. The chapter closes with the Oṃ Tat Sat formula: the three designations of Brahman that consecrate all acts of sacrifice, gift, and austerity performed with genuine intent.
Name: Śraddhā-traya-vibhāga-yoga — the yoga of the analysis of the three types of faith. Śraddhā (from śrat + dhā: to place the heart in) = faith, trust, heartfelt conviction. Chapter 17's central claim: the Guṇa that predominates in a being determines the character of their faith — and their faith determines the character of everything they do.
Chapter 17 shows that the Guṇa that predominates in a person determines the quality of their faith, which in turn colours everything they do — their food, their rituals, their austerity, their generosity — and closes with the formula Oṃ Tat Sat that sanctifies all genuine acts of Dharmic life.

BG 17.3 — a person is what their faith is

The chapter's foundational statement: sattvānurūpā sarvasya śraddhā bhavati bhārata / śraddhāmayo 'yaṃ puruṣo yo yac-chraddhaḥ sa eva saḥ — "The faith of every person, O Bhārata, is in accordance with their inner nature (sattva — here meaning 'being' or 'constitution'). A person is made of their faith. One is whatever their faith is" (BG 17.3). This is the chapter's philosophical centrepiece: faith is not a surface phenomenon but the expression of the whole being's orientation. Where the Guṇas are, there is the faith; where the faith is, there is the person.

The tripartite analysis

Domain Sāttvic Rājasic Tāmasic
Faith (17.4) Worship of the gods (devas) Worship of the Yakṣas and Rākṣasas Worship of ghosts and spirits
Food (17.8–17.10) Juicy, smooth, substantial, agreeable — promoting longevity, vitality, strength, health, happiness Bitter, sour, salty, hot, pungent, dry, burning — producing pain, grief, sickness Stale, tasteless, putrid, leftover — impure
Sacrifice (17.11–17.13) Offered as ordained, with no expectation of reward, with focused mind Offered with expectation of reward or ostentation Without proper knowledge, without Mantra, without faith, without giving food
Austerity (17.14–17.19) Bodily: reverence to gods/teachers/the wise; purity; uprightness; brahmacarya; non-injury. Of speech: no agitation to others, truth, gentle, beneficial, Vedic study. Of mind: serenity, gentleness, silence, self-control, purity of disposition. Performed with faith, without desire for fruit Performed for honour, respect, worship, show — ostentation; result unstable and transient Performed with deluded stubborn foolishness, torturing the self or with intent to harm another
Charity (17.20–17.22) Given as duty, to one who can give nothing in return, at the right place, time, and to a worthy recipient Given with reluctance, expecting return, or for the sake of reward Given at wrong place/time, to unworthy recipient, without respect or with contempt

BG 17.4–17.22. Gambhirananda (trans.), pp. 664–693.

BG 17.23 — Oṃ Tat Sat

BG 17.23 — The three-syllable consecration formula
ॐ तत्सदिति निर्देशो ब्रह्मणस्त्रिविधः स्मृतः
oṃ tat sad iti nirdeśo brahmaṇas tri-vidhaḥ smṛtaḥ
"Oṃ, Tat, Sat — this threefold designation of Brahman has been taught."
ब्राह्मणास्तेन वेदाश्च यज्ञाश्च विहिताः पुरा
brāhmaṇās tena vedāś ca yajñāś ca vihitāḥ purā
"By that were the Brahmins, the Vedas, and the sacrifices ordained of old."
Oṃ — the primordial syllable, designation of Brahman, used at the beginning of all Vedic acts. Tat (that) — indicates Brahman as the transcendent, the absolute; used in dedication of acts: "that, not I, is the doer and recipient." Sat (being, the good, the real) — indicates Brahman as existence and goodness; used for righteous acts, auspicious acts, acts of genuine virtue. Together the three names — used at commencement, dedication, and completion of sacrifice — orient all action toward the ground of Brahman.
BG 17.28 — the closing verse: Aśraddhayā hutam The chapter closes with a warning: aśraddhayā hutaṃ dattaṃ tapas taptaṃ kṛtaṃ ca yat / asad ity ucyate pārtha na ca tat pretya no iha — "Whatever is offered, given, performed as austerity, or done without faith — it is said to be Asat (unreal, without being). It benefits neither in this world nor in the hereafter, O Pārtha." The closing verse closes the circle on Chapter 17's analysis: Oṃ Tat Sat consecrates action; aśraddhā (absence of faith) makes action asat — without genuine being, without lasting fruit.
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The three types of austerity in detail — BG 17.14–17.19

Chapter 17's treatment of austerity is the Gīta's most systematic — and the only place where austerity is explicitly divided into three kinds: bodily, verbal, and mental.

Bodily austerity (kāya-tapaḥ, BG 17.14): Reverence to the gods, Brahmins, teachers, and wise; purity; uprightness; brahmacarya (continence); non-violence.

Verbal austerity (vāṅ-maya-tapaḥ, BG 17.15): Speech that causes no agitation to others; truthful; gentle; beneficial; engagement in Vedic recitation.

Mental austerity (mānasa-tapaḥ, BG 17.16): Serenity of mind; gentleness; silence; self-control; purity of disposition.

The Sattvic form of all three: performed with faith, without desire for fruit, by one who is not shaken (BG 17.17). This connects directly to the Karma Yoga principle of Chapters 3–5 — austerity as offering rather than as performance.

BG 17.14–17.19. Gambhirananda (trans.), pp. 683–692.

Oṃ Tat Sat — BG 17.24–17.27

BG 17.24–17.27 elaborate how the three syllables are to be used in practice: "Therefore with Oṃ, acts of sacrifice, gift, and austerity as enjoined in the scriptures are always begun by the expounders of Brahman" (17.24). "With Tat, without aiming at fruit, the various acts of sacrifice, austerity, and gift are performed by the seekers of liberation" (17.25). "In the sense of existence (being), goodness, and auspicious acts, the word Sat is employed; and for commendable action, O Pārtha, the word Sat is also used" (17.26). The tripartite formula thus corresponds to three moments of action: initiation with Oṃ (orientation to Brahman), dedication with Tat (offering to the transcendent without personal claim), and completion and assessment with Sat (acknowledging what has genuine being and goodness).

BG 17.24–17.27. Gambhirananda (trans.), pp. 694–697.

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Chapter 17 of 18 · Bhagavad Gīta
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Arjuna's question — the person of faith outside the Śāstra (BG 17.1)

Arjuna's opening question is precise and picks up exactly where Chapter 16 ended: "Those who, ignoring the injunction of the scripture, worship with faith — what is their status, O Kṛṣṇa? Is it Sāttvic, Rājasic, or Tāmasic?" (BG 17.1). Chapter 16 said that acting without scriptural injunction leads to failure. But Arjuna notes that some people act outside formal scripture yet with genuine faith. Kṛṣṇa's answer introduces the concept of natural Śraddhā — the faith that arises from the person's constitution (BG 17.3) — as the explanatory principle. Faith is the primary category; Guṇas determine its quality; the Śāstra provides the framework that channels faith toward its highest expression.

Śaṅkara on BG 17.3 — śraddhāmayo 'yaṃ puruṣaḥ

Śaṅkara's reading of BG 17.3 is philosophical: the statement "one is whatever one's faith is" expresses the Upaniṣadic principle yad eva vidyayā karoti — what one does is shaped by what one knows and trusts. Faith here is not merely intellectual assent but the full orientation of the entire being — what one gives one's heart (śrat) to. For Śaṅkara, the Sattvic faith that orients itself to the Brahman-nature of reality is the highest form; the Rajasic and Tamasic faiths are successive deformations of this orientation through the distorting lenses of desire and delusion.

BG 17.3. Śaṅkara, Gītābhāṣya (Gambhirananda trans., pp. 665–668).

Primary Sources for Chapter 17 BG Chapter 17 complete (28 verses) — Gambhirananda trans. (Advaita Ashrama, 2006), pp. 663–698. Śaṅkara on BG 17.3 (śraddhāmayo 'yaṃ puruṣaḥ); 17.14–17.19 (three types of austerity); 17.23–17.27 (Oṃ Tat Sat formula). Zaehner (OUP, 1969), pp. 393–406.
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Chapter 17 of 18 · Bhagavad Gīta
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Provenance & Citation

Entry type
BG chapter entry (triple format)
Chapter
BG 17: Śraddhā-traya-vibhāga-yoga · 28 verses
Confidence
High — Tier 1 (Gambhirananda + Śaṅkara); Tier 2 (Zaehner 1969)
Contested areas
Interpretation of BG 17.3 — whether sattva here means the Guṇa Sattva or the neutral term "being/constitution"; the application of the Oṃ Tat Sat formula in practice
Last reviewed
Cite as
"BG Chapter 17 — Sanātana Dharma Codex", thecodex.expert/sanatana-dharma/texts/bhagavad-gita/chapter-17/, last updated May 2026.

Sources used on this page

  1. Tier 1 — Primary text + commentary: Bhagavad Gīta 17.1–17.28 with Śaṅkara's Gītābhāṣya · trans. Swami Gambhirananda (Advaita Ashrama, 2006), pp. 663–698
  2. Tier 2 — Academic: R. C. Zaehner (trans. and notes), The Bhagavad-Gītā (Oxford University Press, 1969), pp. 393–406