B.G 3.34

इंद्रियस्येंद्रियस्यार्थे रागद्वेषौ व्यवस्थितौ। तयोर्न वशमागच्छेत् तौ ह्यस्य परिपन्थिनौ ॥३४॥

iṁdriyasyēṁdriyasyārthē rāgadvēṣau vyavasthitau। tayōrna vaśamāgacchēt tau hyasya paripanthinau ॥34॥

[इंद्रियस्य इंद्रियस्य अर्थे राग द्वेषौ व्यवस्थितौ। तयोः न वशम् आगच्छेत् तौ हि अस्य परिपन्थिनौ॥
iṁdriyasya = from the Indriyas; iṁdriyasya = from the Indriyas; arthē = the objects; rāga = attachment; dvēṣau = aversion; vyavasthitau = are established;। tayōḥ = in them; na = not; vaśam = under their sway; āgacchēt = should come; tau = those two; hi = indeed; asya = of these; paripanthinau = obstacles;॥]

By senses dwelling on sense objects, attachement and aversion necessarily arise. Let not one come under the sway of these two. Indeed, they are obstacles.

Gīta Bhāshya 3.34

It is possible to alter the past impressions with intense effort.

तथापि शक्तितो निग्रहः कार्यः। निग्रहात् सद्यः प्रयोजनाभावेऽपि भवत्येव अतिप्रयत्नतः इत्याशयवानाह - इंद्रियस्येति॥

tathāpi śaktitō nigrahaḥ kāryaḥ। nigrahāt sadyaḥ prayōjanābhāvē'pi bhavatyēva atiprayatnataḥ ityāśayavānāha - iṁdriyasyēti॥

[tathāpi = even then; śaktitō = as per one's capacity; nigrahaḥ = restraining; kāryaḥ = is to be performed;। nigrahāt = from restraining; sadyaḥ = immediate; prayōjanābhāvē'pi = even in the absence of purpose; bhavatyēva = happens, indeed; atiprayatnataḥ = with intense effort; ityāśayavānāha = thus, having intention, it is said; - iṁdriyasyēti = 'iṁdriyasyē' verse;॥]

Even then (though driven by prakrti), one must pursue restraining (of Indriyas) as per one's capacity. Even though it may not have immediate purpose, restraining with an intense effort indeed yields results. With this intention it is said - 'iṁdriyasyē', i.e. 'from Indriyas', verse.

तथा हि उक्तम् -

tathā hi uktam-

[tathā = therefore; hi = only/particularly; uktam = it is said;]

Therefore, it is specifically said:

"संस्कारो बलवानेव ब्रह्माद्या अपि तद्वशाः। तथापि सोऽन्यथाकर्तुं शक्यतेऽतिप्रयत्नतः॥"

"saṁskārō balavānēva brahmādyā api tadvaśāḥ। tathāpi sō'nyathākartuṁ śakyatē'tiprayatnataḥ॥"

["saṁskārō = past impressions; balavānēva = powerful, as if; brahmādyā = celestial beings; api = even; tadvaśāḥ = under its influence;। tathāpi = nevertheless; sō'nyathākartuṁ = that, altered; śakyatē'tiprayatnataḥ = is possible; with intense effort;]

"The past impressions are so powerful that even the celestial beings come under its sway. Nevertheless, with intense effort, it is possible to alter its impact.

इति ॥३४॥

iti ॥34॥

[iti = states testimonial;]

-states testimonial.