Swami Bhoomananda Tirtha ji, in this audio, beautifully explains what Brahma Vidya Sadhana (pursuit) is.

Meditative absorption is only the initial stage in the Knowledge pursuit, says Swamiji. Important Sadhana is to reform and refine the mind and intelligence through introspection. Chanting a verse from Bhagavad Gita, he says that Kama (Attraction) and Krodha (Repusion) have to be sublimated by a seeker. This will lead to Spiritual redemption.

Shlokas chanted in this audio:

आपूर्यमाणमचलप्रतिष्ठं
समुद्रमाप: प्रविशन्ति यद्वत्‌ ।
तद्वत्कामा यं प्रविशन्ति सर्वे
स शान्तिमाप्नोति न कामकामी ॥

(Bhagavad Gita–2.70)

कामक्रोधवियुक्तानां यतीनां यतचेतसाम् ।
अभितो ब्रह्मनिर्वाणं वर्तते विदितात्मनाम् ।।

(Bhagavad Gita–5.26)