One verse

Bhagavad Gita 6.25

6.25

शनैः शनैरुपरमेद् बुद्ध्या धृतिगृहीतया | आत्मसंस्थं मनः कृत्वा न किञ्चिदपि चिन्तयेत् ||६-२५||

śanaiḥ śanairuparamed buddhyā dhṛtigṛhītayā . ātmasaṃsthaṃ manaḥ kṛtvā na kiñcidapi cintayet ||6-25||

śanaiḥ
gradually
śanaiḥ
step by step
uparamet
one should hold back
buddhyā
by intelligence
dhṛti-gṛhītayā
carried by conviction
ātma-saṁstham
placed in transcendence
manaḥ
mind
kṛtvā
making
na
not
kiñcit
anything else
api
even
cintayet
should think of

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.