Sbg 18.57 etradi
English Translation of Ramanuja's Sanskrit Commentary By Swami Adidevananda 18.57 'By your mind' means with thought which considers the self as belonging to Me and as controlled by Me. For, it has been declared: 'Surrendering all your acts to Me with a mind focussed on the self' (3.30). Surrendering all acts to Me along with agentship and the object of worship and regarding 'Me as the goal,' i.e., constantly contemplating that I alone am to be attained as the goal; performing all acts; and resorting to Buddhi-Yoga - focus your mind on Me always. Buddhi Yoga here implies the mental attitude special to the seeker of salvation in regard to agency of works, the fruits etc.
Thus