🔸 Sūtra 136 — “Itareṣāṁ ca anupalabdheḥ” (2-1-2)Sūtra 137 — “Etena yogaḥ pratyuktaḥ” (2-1-3)

🌿 Brahma Sutras (2-1-2 & 2-1-3) 

🔸 Sūtra 136 — “Itareṣāṁ ca anupalabdheḥ” (2-1-2)

Meaning: The other philosophical schools cannot be accepted because their positions cannot be logically or scripturally established.

🔸 Sūtra 137 — “Etena yogaḥ pratyuktaḥ” (2-1-3)

Meaning: By refuting Sāṅkhya, Yoga is also automatically refuted, because Yoga depends on Sāṅkhya.

🌼 PART 1 — Pauruṣeyam vs. Apauruṣeyam & The Two Minds

Main Idea:

Shankara explains the difference between human-made (pauruṣeya) knowledge and Vedic revelation (apauruṣeya). Humans speak through the mind, so everything they say is limited. But the Vedas are not produced by human thought — they arise from a state beyond the mind.

Key Points:

Pauruṣeyam: All thoughts, philosophies, arguments created by the human mind.

Apauruṣeyam: Knowledge that is not generated by the mind — the Vedas, revealed in a state beyond mental activity.

A normal mind can only think in savikalpa (with distinctions – names & forms).

But the same mind has a deeper power: nirvikalpa (seeing only the pure substrate of all names & forms).

Shankara uses the ocean metaphor:

Waves, foam, bubbles = savikalpa vision.

Seeing only water everywhere = nirvikalpa vision.

Advaita Teaching:

The Vedas arose from the nirvikalpa level. Other philosophies arise only from the savikalpa level. Therefore Vedic knowledge is ultimate, others are limited.

🌼 PART 2 — Meaning of the Great Mahāvākyas

Main Idea:

Each Mahāvākya consists of two parts —

First part → savikalpa understanding (difference)

Second part → nirvikalpa understanding (non-difference)

Examples:

1. Sarvam Khalvidam Brahma

Sarvam idam = all this world (savikalpa)

Brahma = the one substratum (nirvikalpa)

2. Ayam Ātmā Brahma

Ayam Ātmā = the individual with body–mind (savikalpa)

Brahma = the pure Self without distinctions (nirvikalpa)

3. Prajnānam Brahma

Consciousness is not an object but the very light of knowing.

4. Aham Brahmāsmi

“I” in a limited sense is ego → savikalpa.

“I” in unlimited sense is pure existence-consciousness → nirvikalpa.

Key Insight:

The quality (Sat–Chit) of the individual Self and Brahman is the same. Only the extent differs — Brahman is infinite; the jīva perceives itself as limited due to ignorance.

Thus all plurality is only appearance — the truth is One Atman everywhere.

🌼 PART 3 — Krishna & Jāmbavanta Story and Why Dualistic Vision is Dangerous

Main Idea:

Jāmbavanta believed only “Rāma is God,” and denied Kṛṣṇa. To remove this duality-based ignorance, Kṛṣṇa fought him for 21 days until Jāmbavanta’s ego was crushed.

Purpose of the Story:

Jāmbavanta’s devotion was pure, but not Advaitic.

He saw difference:

“Rama is God, Krishna is not.”

After the long fight, he realizes:

“The same Lord appears as both Rāma and Kṛṣṇa.”

Connection to the Sutra (Sūtra 137)

This section prepares for Sūtra 137:

🔸 Sūtra Highlight:

“Etena yogaḥ pratyuktaḥ” (2-1-3)

Meaning:

When Sankhya’s dualism is rejected, Yoga’s dualism is also defeated.

Why?

Both Sankhya and Yoga accept two realities:

Purusha (consciousness)

Prakriti (matter)

Advaita rejects this — there cannot be two independent realities.

Thus, like Jāmbavanta, everyone must outgrow dualistic vision and come into non-dual sight.

🌼 PART 4 — Why Shankara Rejects Sāṅkhya & Yoga (But Still Uses What is Good in Them)

Main Idea:

Sankhya and Yoga are popular because they promise liberation. But their core doctrines contradict the Vedas, so Shankara refutes them.

✔ Why Sankhya is rejected

Claims many Purushas (many selves).

Claims Prakriti is an independent cause.

Vedas say only ONE Self exists.

Vedas never accept a second independent entity.

✔ Why Yoga is rejected

Accepts Ishvara but still keeps duality:

“I the yogi, and He the Lord.”

Liberation cannot come while duality remains.

Their “disciplines” (asana, pranayama etc.) are useful for mind purification, but not the final path.

Yet Shankara Accepts What is Good:

From Sāṅkhya: the idea that the Self is asanga — unattached.

From Yoga: discipline, renunciation, steadiness.

Final Verdict (Sūtra 136):

🔸 “Itareṣāṁ ca anupalabdheḥ” (2-1-2)

Meaning:

Because their key doctrines cannot be supported by scripture or reason, Sankhya & Yoga are invalid as paths to final liberation.

Upanishadic Clarification:

When the Upanishads use the words Sāṅkhya or Yoga, they do NOT refer to Kapila’s or Patañjali’s systems.

Instead:

Sāṅkhya = Jñāna (knowledge of Brahman)

Yoga = Dhyāna (steady meditation on the Self)

Just like “cat” and “marjālam” are two words for the same thing, here too the words differ, but the meaning is ONE.

🌟 FINAL ESSENCE OF ALL FOUR PARTS

1. Only the Vedas (apauruṣeya) reveal the highest truth.

Other systems come from the mind and therefore cannot reach absolute reality.

2. The Self (Ātman) alone is real; distinctions belong to the mind.

3. Dualistic devotion (like Jāmbavanta’s) must evolve into Advaitic realization.

4. Sāṅkhya and Yoga are refuted because they maintain duality.

Their helpful portions (discipline, dispassion, purity) are accepted, but

their metaphysics is rejected.

5. Liberation comes only through:

Knowledge (Sāṅkhya = Brahma-jñāna) and

Abidance in that knowledge (Yoga = Jñāna-niṣṭhā)

Not through any method that accepts duality.