BhG 6.29

syntax

yoga-yuktātmā (whose self is engaged in yoga) sarvatra sama-darśanaḥ (everywhere having the same vision)
ātmānam (self) sarva-bhūta-stham (situated in all beings)
sarva-bhūtāni ca (and all creatures) ātmani (in the self) īkṣate (he sees).

grammar

sarva-bhūta-stham	–	sarva-bhūta-stha 2n.1 m. – yo sarveṣu bhūteṣu tiṣṭhati tam – who is situated in all beings (from: sarva – all, whole; √bhū – to be, PP bhūta – been, real, world; √sthā – to stand, stha – suffix: being in);
ātmānam	–	ātman 2n.1 m. – self;
sarva-bhūtāni	–	sarva-bhūta 2n.3 n.; KD: sarvāṇi bhūtānīti – all beings (from: sarva – all, whole; √bhū – to be, PP bhūta – been, real, world);
ca	–	av. – and;
ātmani	–	ātman 7n.1 m. – in the self;
īkṣate	–	√īkṣ (to see) Praes. Ā 1v.1 – he sees;
yoga-yuktātmā	–	yoga-yuktātman 1n.1 m.; BV: yasyātmā yoge yukto ‘sti saḥ – whose self is engaged in yoga (from: √yuj – to yoke, to join, to engage, yoga – yoga, yoking, application, a means, one of the schools of Hindu philosophy; PP yukta – yoked, endowed with, ātman – self); or: BV: yasyātmā yogena yukto ‘sti saḥ – whose self is engaged by yoga;
sarvatra	–	av. – everywhere, in every case (from: sarva – all; indeclinable locative with an ending –tra);
sama-darśanaḥ	–	sama-darśana 1n.1 m.; BV: yasya darśanaṁ samam asti saḥ – who has equal vision (from: sama – the same, equal, equivalent; √dṛś – to see, darśana – seeing, observing, vision);

textual variants

īkṣate → paśyate / ikṣeta / paśyato (he sees / he should see / they two see);
sama-darśanaḥ → sama-darśinaḥ (of one seeing equal);

The second pada of verse BhG 6.29 is similar to the third pada of verse: īśāvāsyopaniṣad 6;

Śāṃkara

idānīṃ yogasya yat phalaṃ brahmaikatva-darśanaṃ sarva-saṃsāra-viccheda-kāraṇaṃ tat pradarśayate—

sarva-bhūta-sthaṃ sarveṣu bhūteṣu sthitaṃ svam ātmānaṃ sarva-bhūtāni ca ātmani brahmādīni stamba-paryantāni ca sarva-bhūtāni ātmany ekatāṃ gatāni īkṣate paśyati yoga-yuktātmā samāhitāntaḥ-karaṇaḥ sarvatra sama-darśanaḥ sarveṣu brahmādi-sthāvarānteṣu viṣameṣu sarva-bhūteṣu samaṃ nirviśeṣaṃ brahmātmaikatva-viṣayaṃ darśanaṃ jñānaṃ yasya sa sarvatra sama-darśanaḥ

Rāmānuja

atha yogavipākadaśā catuṣprakārocyate

svātmanaḥ pareṣām ca bhūtānāṃ prakṛtiviyuktasvarūpāṇāṃ jñānaikākāratayā sāmyād vaiṣamyasya ca prakṛtigatatvād yogayuktātmā prakṛtiviyukteṣv ātmasu sarvatra jñānaikākāratayā samadarśanaḥ sarvabhūtasthaṃ svātmānaṃ sarvabhūtāni ca svātmanīkṣate sarvabhūtasamānākāraṃ svātmānaṃ svātmasamānākārāṇi ca sarvabhūtāni paśyatītyarthaḥ / ekasmin ātmani dṛṣṭe sarvasyātmavastunas tatsāmyāt sarvam ātmavastu dṛṣṭaṃ bhavatītyarthaḥ / „sarvatra samadarśanaḥ” iti vacanāt / „yo ‚yaṃ yogas tvayā proktaḥ sāmyena” ityanubhāṣaṇāc ca / „nirdoṣaṃ hi samaṃ brahma” iti vacanāc ca

Śrīdhara

brahma-sākṣātkāram eva darśayati sarva-bhūta-stham iti | yogenābhyasyamānena yuktātmā samāhita-cittaḥ | sarvatra samaṃ brahmaiva paśyatīti sama-darśanaḥ | tathā sa svam ātmānam avidyākṛta-dehādi-pariccheda-śūnyaṃ sarva-bhūteṣu brahmādi-sthāvarānteṣv avasthitaṃ paśyati | tāni cātmany abhedena paśyati

Madhusūdana

tad evaṃ nirodha-samādhinā tvaṃ-pada-lakṣye tat-pada-lakṣye ca śuddhe sākṣātkṛte tadaikya-gocarā tattvam asīti vedānta-vākya-janyā nirvikalpaka-sākṣātkāra-rūpā vṛttir brahma-vidyābhidhānā jāyate | tataś ca kṛtsnāvidyā-tat-kārya-nivṛttyā brahma-sukham atyantam aśnuta ity upapādayati tribhiḥ ślokaiḥ | tatra prathamaṃ tva-pada-lakṣyopasthitim āha sarveti |

sarveṣu bhūteṣu sthāvara-jaṅgameṣu śarīreṣu bhoktṛtayā sthitam ekam eva vibhum ātmānaṃ pratyak-cetanaṃ sākṣiṇaṃ paramārtha-satyam ānanda-ghanaṃ sākṣyebhyo ‚nṛta-jaḍa-paricchinna-duḥkha-rūpebhyo vivekenekṣate sākṣātkaroti | tasmiṃś cātmani sākṣiṇi sarvāṇi bhūtāni sākṣyāṇy ādhyāsikena sambandhena bhogyatayā kalpitāni sākṣi-sākṣyayoḥ sambandhāntarānupapatter mithyā-bhūtāni paricchinnāni jaḍāni duḥkhātmakāni sākṣiṇo vivekenekṣate |

kaḥ ? yoga-yuktātmā yogena nirvikcāra-vaiśāradya-rūpeṇa yuktaṃ prasādaṃ prāpta ātmāntaḥkaraṇaṃ yasya sa tathā | tathā ca prāg evoktaṃ – nirvicāra-vaiśāradye ‚dhyātma-prasādaḥ [YogaS 1.47] ṛtaṃbharā tatra prajñā [YogaS 1.48] śrutānumāna-prajñābhyām anya-viṣayā viśeṣārthatvāt [YogaS 1.49] iti | tathā ca śabdānumānāgocara-yathārtha-viśeṣa-vastu-gocara-yoga-pratyakṣeṇa ṛtaṃbhara-saṃjñena yugapat sūkṣmaṃ vyavahitaṃ viprakṛṣṭaṃ ca sarvaṃ tulyam eva paśyatīti sarvatra samaṃ darśanaṃ yasyeti sarvatra sama-darśanaḥ sann ātmānam anātmānaṃ ca yoga-yuktātmā yathā-sthitam īkṣata iti yuktam |

athavā yo yoga-yuktātmā yo vā sarvatra-sama-darśanaḥ sa ātmānam īkṣata iti yogi-sama-darśināv ātmekṣaṇādhikāriṇāv uktau | yathā hi citta-vṛtti-nirodhaḥ sākṣi-sākṣātkāra-hetus tathā jaḍa-vivekena sarvānusyūta-caitanya-pṛthak-karaṇam api | nāvaśyaṃ yoga evāpekṣitaḥ | ata evāha vasiṣṭhaḥ –

dvau kramau citta-nāśasya yogo jñānaṃ ca rāghava |
yogo vṛtti-nirodho hi jñānaṃ samyag-avekṣaṇam ||
asādhyaḥ kasyacid yogaḥ kasyacit tattva-niścayaḥ |
prakārau dvau tato devo jagāda paramaḥ śivaḥ || iti |

citta-nāśasya sākṣiṇaḥ sakāśāt tad-upādhi-bhūta-cittasya pṛthak-karaṇāt tad-adarśanasya | tasyopāya-dvayam – eko ‚samprajñāta-samādhiḥ | samprajñāta-samādhau hi ātmaikākāra-vṛtti-pravāha-yuktam antaḥ-karaṇa-sattvaṃ sākṣiṇānubhūyate niruddha-sarva-vṛttikaṃ tūpaśāntatvān nānubhūyata iti viśeṣaḥ | dvitīyas tu sākṣiṇi kalpitaṃ sākṣyam anṛtatvān nāsty eva sākṣy eva tu paramārtha-satyaḥ kevalo vidyata iti vicāraḥ | tatra pratamam upāyaṃ prapañca-paramārthatā-vādino hairaṇyagarbhādayaḥ prapedire | teṣāṃ paramārthasya cittasyādarśanena sākṣi-darśane nirodhātiriktopāya-sambhavāt | śrīmac-chaṅkara-bhagavat-pūjya-pāda-matopajīvinas tv aupaniṣadāḥ prapañcānṛtatva-vādino dvitīyam evopāyam upeyuḥ | teṣāṃ hy adhiṣṭhāna-jñāna-dārḍhye sati tatra kalpitasya bādhitasya cittasya tad-dṛśyasya cādarśanam anāyāsenaivopapadyate | ataeva bhagavat-pūjya-pādāḥ kutrāpi brahma-vidāṃ yogāpekṣāṃ na vyutpādayāṃ babhūva | ataeva caupaniṣadāḥ paramahaṃsāḥ śraute vedānta-vākya-vicāra eva gurum upasṛtya pravartante brahma-sākṣātkārāya na tu yoge | vicāreṇaiva citta-doṣa-nirākaraṇena tasyānyathā-siddhatvād iti kṛtam adhikena

Viśvanātha

jīvan-muktasya tasya brahma-sākṣātkāraṃ darśayati sarva-bhūta-stham ātmānam iti | paramātmanaḥ sarva-bhūtādhiṣṭhātṛtvam ātmanīti paramātmanaḥ sarva-bhūtādhiṣṭhānaṃ ca | īkṣate aparokṣatayānubhavati | yoga-yuktātmā brahmākārāntaḥkaraṇaḥ | samaṃ brahmaiva paśyatīti sama-darśanaḥ

Baladeva

evaṃ niṣpaṇṇa-samādhiḥ pratyakṣita-sva-parātma-yogī parātmanaḥ sarvagatatvaṃ tad anyātmanāṃ druhiṇādīnāṃ sarveṣāṃ tad-āśrayatvaṃ tasyāviṣayamatvaṃ cānubhavatīty āha sarveti | yoga-yuktātmā siddha-samādhis tad ātmānaṃ ātatatvāc ca mātṛtvād ātmā hi paramo hariḥ iti smṛteḥ | yo mām iti vivaraṇāc ca paramātmānaṃ sarva-bhūta-stham nikhilaṃ jīvāntaryāmiṇam īkṣate | ātmani tasminn āśraya-bhūte sarva-bhūtāni ca tam eva sarva-jīvāśrayaṃ cekṣate | sa ity āha sarvatreti | tat tat-karmānuguṇyenoccāvacatayā sṛṣṭeṣu sarveṣu jīveṣu samam vaiṣamya-śūnyaṃ parātmānaṃ paśyatīti tathā