Bhagavad-gītā 6.25
BG 6.25
Open the full passageशनैः शनैरुपरमेद् बुद्ध्या धृतिगृहीतया । आत्मसंस्थं मनः कृत्वा न किञ्चिदपि चिन्तयेत् ॥२५॥
Sanskrit
śanaiḥ śanair uparamed buddhyā dhṛti-gṛhītayā ātma-saṁsthaṁ manaḥ kṛtvā na kiñcid api cintayet
Translation
Gradually, step by step, one should become situated in trance by means of intelligence sustained by full conviction, and thus the mind should be fixed on the self alone and should think of nothing else.