Bhagavad Gītā Chapter 8, Verse 20: Krishna to Arjuna — Akṣara-Brahma-Yoga

Bhāṣyakāra purports

• Śaṅkaraadvaita

  Beyond that previously described unmanifest (avyakta), there is a higher bhava — the supreme Brahman named Akshara — utterly distinct (anya) from it, not merely different in degree but in kind (vilakshana). That bhava is itself avyakta, beyond the reach of all sense-organs; the particle 'tu' (but) marks the sharp disjunction between this imperishable ground and the mutable unmanifest that seeds creation. When all beings from Brahma downward perish, this alone does not perish — because it is not an effect and never entered origination.

  divergence: Śaṅkara glosses 'paras tasmāt' as 'vyatirikta, distinct from the previously named avyakta'; 'anyas' as 'vilakshana, utterly unlike'; and the survival through universal dissolution as following from its non-causal, non-produced nature (akārya).

• Rāmānujaviśiṣṭādvaita

  Superior to that insentient matter-principle (achetana-prakriti) in the order of purusha-artha (highest end), there exists a bhava of an entirely different class — one whose form is pure cognition (jnana-eka-akara), beyond any means of proof to reveal, self-luminous to its own witness. It is eternal not merely in duration but in ontological constitution, lacking the capacity for origination or destruction. Even while present in space (vyoma) and in all effects and causes from sky onward, when all of them perish it remains — because it is the conscious substrate (chetana-adhara) they have never contained.

  divergence: Rāmānuja reads avyakta here as 'not manifested by any pramana, self-evidenced to itself alone' (sva-samvedya-sadharana-akara) — distinct from his reading of the lower avyakta as prakriti. The phrase 'viyad-adishu bhuteshu sakaraneshu sakaryeshu vinashyatsu' anchors the all-pervasiveness with no ontological dependence.

• Madhvadvaita

  The avyakta named here is Bhagavan Vishnu himself — the supreme, unmanifested Parabrahman recalled by the earlier phrase 'mam upetya' (reaching Me). This is not a cosmic principle but a Person: his abode (dhama) is his own radiant nature (tejas-svarupa), as the Garuda Purana confirms — 'the wise call that luminous form dhama.' All beings perish; Hari alone does not, for he is not constituted by any cause that could be undone.

  divergence: Madhva's bhashya reads 'avyaktah' through the Garuda Purana citation confirming 'avyaktam paramam vishnum' and the equation dhama = tejas-svarupa. The reference to 'mam upetya na nivartante' ties this verse to 8.15, making it a gloss on personal liberation into Hari's own radiant form.

• Vallabhaśuddhādvaita

  The jiva denominated 'vyakta' (manifest individual) — from the individual soul up to Brahma — has been described. Now: beyond even the lower avyakta (kshara), there is the truly avyakta — without any limiting individuation (vyakti-rahita), beyond all gunas, sanatan. When all those possessed of individuation (vyaktimat) perish, this bhava does not perish, for its essential nature is non-cessation (anuccitti-dharmatva). This is Shri Krishna's own nature held out before the devotee as the destination that prasada alone can deliver.

  divergence: Vallabha structures the verse around the progression kshara (vyakta-jiva) → lower avyakta → supreme avyakta, using 'vyakti-rahita' (devoid of limiting individuation) as the defining mark of the highest. 'Anuccitti-dharmatva' (the property of non-cessation) is his technical term for why this bhava survives universal dissolution.

• Śrīdharabhakti

  Having shown the impermanence of all worlds, Shridhara turns to the eternal nature of Parameshvara: beyond that unmanifest which is the cause of the moving and unmoving universe, there is a further bhava — itself the cause of even that avyakta, utterly distinct from it, not accessible to eye or any other sense-organ (chakshur-ady-agochara), beginningless (anadih). When all beings constituted as effect and cause (karya-karana-lakshana) perish, this bhava alone does not perish.

  divergence: Shridhara's framing is explicitly pedagogical — 'lokanam anityatvam prapanchya parameshvara-svarupasya nityatvam prapanchayati' — expanding impermanence to set off the divine eternity. The key technical move is 'tasyapi karanabhutah' — this bhava is the cause-of-the-cause, not merely above the world but above the first cosmological avyakta.

• Madhusūdanaadvaita-bhakti

  Having explained 'all worlds up to Brahma are subject to return,' Madhusudana now elucidates 'reaching Me there is no rebirth.' Beyond Hiranyagarbha — the gross-universe's avyakta cause — there is a bhava not merely superior but utterly unlike (atyanta-vilakshana), as the shruti confirms: 'na tasya pratima asti' (he has no likeness). This avyakta is formless, beyond all senses; it pervades all effects as their sat-rupa (being-form). When all beings perish — and equally when they arise — this bhava neither perishes nor is produced, because it is not an effect and bears no identity with Hiranyagarbha whose rise-and-fall belongs to the causal order.

  divergence: Madhusudana explicitly locates the lower avyakta as Hiranyagarbha (the cosmic mind) and the higher as Parameshvara who is 'akaryasya' (not a product). The shruti citation 'na tasya pratima asti' rules out any resemblance even to the higher created realities. The synthesis: Brahman-as-Parameshvara, not an impersonal absolute stripped of the Lord.