18.57 Cetasa, mentally, with a discriminating intellect; sannyasya, surrendering; sarva-karmani, all actions meant for seen or unseen results; mayi, to Me, to God, in the manner described in, 'Whatever you do, whatever you eat' (9.27); and matparah, accepting Me as the supreme-you to whom I, Vasudeva, am the supreme, are matparah; becoming so; satatam, ever; maccittah bhava, have your kind fixed only on Me; upasritya, by resorting-resorting implies not taking recourse to anything else-; buddhi-yogam, to the concentration of your intellect. Having the intellect (buddhi) concentrated on Me is buddhi-yoga.