18.13 O mighty-armed one, nibodha, learn; me, from Me; imani, these; panca, five; karanani, factors, accessories, which are going to be stated-for drawing the attention of his (Arjuna's) mind and for showing the difference among these categories [Categories: locus (body) etc], the Lord praises those accessories in the succeeding verses as fit for being known-; siddhaye, for the accomplishment; sarva-karmanam, of all actions; proktani, which have been spoken of; sankhye, in Vedanta-sankhya is that scripture where the subject-matters [In the sentence, 'Thou art That', the word Thou means the individual Self, and That means Brahman. The comprehension of their unity, and also 'hearing, reflection and meditation' are referred to as the subject-matters.] to be known are fully (samyak) stated (khyayante)-; krtante, in which actions terminate. Krtante alifies that very word (Vedanta). Krtam mean action. That in which occurs the culmination (anta) of that krtam is krtantam, i.e. the termination of actions. In the texts, '৷৷.as much utility as a man has in a well' (2.46), and 'O son of Prtha, all actions in their totality culminate in Knowledge' (4.33), the Lord shows the cessation of all actions when the knowledge of the Self dawns. Hence (it is said): '৷৷.which have been spoken of in that Vedanta where actions culminate and which is meant for the knowledge of the Self.' Which are they? This is being answered:

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18.13 O mighty-armed one, learned from Me these [Another reading is etani.-Tr.] five factors for the accomplishment of all actions, which have been spoken of in the Vedanta in which actions terminate.