B.G 2.54

arjuna uvāca। sthitaprajñasya kā bhāṣā samādhisthasya kēśava। sthitadhīḥ kiṁ prabhāṣēta kimāsīta vrajēta kim ॥2-54॥

Arjuna said: O Keshava, What are the characteristics of the one who is stationed in practical wisdom when he is in an equanimous state (samādhi)? Stationed in his intellect, how does he speak? With what attitude does he sit? How does he walk?

Gīta Bhāshya 2.54

'sthitaprajna' - one who is established in practical wisdom; 'bhāshā' - ascertained characteristics; 'samādhistha' - one who is stationed in Samādhi; 'Kēshava' - one who administers the creation and destruction activities of the universe; 'kimāsīt' - 'With what attitude does he sit?'; In Puranas, great Kings, and sages enquire about dharma, so that people can grasp the knowledge. It doesn't mean Arjuna is ignorant.

sthitā prajñā jñānaṁ yasya saḥ sthitaprajñaḥ। bhāṣyatē anayā iti bhāṣā। lakṣaṇam ityarthaḥ। uktaṁ lakṣaṇam anuvadati lakṣaṇāntaraṁ pr̥cchāmīti jñāpayitum - samādhisthasya iti।

'sthitaprajna' - is one who is established in the wisdom, i.e. practical knowledge. The term 'bhāshā' means 'as it shines', means ascertained characteristics. The characteristics that differ from normal is being enquired, hence the explicit term 'samādhistha' , i.e. one who is stationed in Samādhi.

kaṁ brahmāṇam īśaṁ rudraṁ ca vartayatīti kēśavaḥ। tathāhi niruktiḥ kr̥tā harivaṁśēṣu rudrēṇa kailāsayātrāyām।

'kam' means creator, Brahma; 'Īsa' means destroyer, Rudra; and 'va' means one who controls; Thus, the lord is addressed as - 'Kēshava'. In Harivamsha, in the episode concerning travel to the Himalaya mountain, a similar meaning is given by lord Rudra to the word 'Kēshava'.

"hiraṇyagarbhaḥ kaḥ prōkta īśaḥ śaṅkara ēva ca। sr̥ṣṭyādinā vartayati tau yataḥ kēśavō bhavān॥"

"One with golden womb, i.e. Brahma, is conveyed by 'Ka', and 'Īsa' means Shankara. Creation and such activities are administered by you, hence O lord, you are called 'Kēshava'."

iti vacanāntarācca।

- is the proverb, as well.

kimāsīta kiṁ prati āsīta।

'kimāsīt' - 'With what attitude does he sit?'

na cārjunō na jānāti tallakṣaṇādikam।

It doesn't mean Arjuna is not aware of those characteristics:

"jānanti pūrvarājānō dēvarṣayastathaiva hi। tathāpi dharmān pr̥cchanti vārtāyai guhyavittayē। na tē guhyāḥ pratīyantē purāṇēṣvalpabudidhanām॥"

"Certainly, the ancient kings and sages have an understanding. Even then, they ask regarding 'dharma' in the Purānas to spread the secret treasure. Those with little intelligence do not recognize it as secret knowledge."

iti vacanāt ॥54॥

- thus state proverb.