kāraṇāni nibodha me
sāṅkhye kṛtānte proktāni
A question may be raised that since any activity performed must have some reaction, how is it that the person in Kṛṣṇa consciousness does not suffer or enjoy the reactions of work? The Lord is citing Vedānta philosophy to show how this is possible. He says that there are ﬁve causes for all activities, and for success in all activity one should consider these ﬁve causes. Sāṅkhya means the stock of knowledge, and Vedānta is the ﬁnal stock of knowledge accepted by all leading ācāryas. Even Śaṅkara accepts Vedānta-sūtra as such. Therefore such authority should be consulted.
The ultimate control is invested in the Supersoul. As it is stated in the Bhagavad-gītā, sarvasya cāhaṁ hṛdi sanniviṣṭaḥ. He is engaging everyone in certain activities by reminding him of his past actions. And Kṛṣṇa conscious acts done under His direction from within yield no reaction, either in this life or in the life after death.