“As stated in Bhagavad-gītā (3.5):
na hi kaścit kṣaṇam api jātu tiṣṭhaty akarma-kṛt
kāryate hy avaśaḥ karma sarvaḥ prakṛti-jair guṇaiḥ
“All men are forced to act helplessly according to the impulses born of the modes of material nature; therefore no one can refrain from doing something, not even for a moment.” Since the living entity cannot remain inactive, he must learn to dedicate his activities to the Lord. Śrīla Prabhupāda comments on this verse from Bhagavad-gītā as follows: “It is not a question of embodied life, but it is the nature of the soul to be always active. Without the presence of the spirit soul, the material body cannot move. The body is only a dead vehicle to be worked by the spirit soul, which is always active and cannot stop even for a moment. As such, the spirit soul has to be engaged in the good work of Kṛṣṇa consciousness, otherwise it will be engaged in occupations dictated by illusory energy. In contact with material energy, the spirit soul acquires material modes, and to purify the soul from such affinities it is necessary to engage in the prescribed duties enjoined in the śāstras. But if the soul is engaged in his natural function of Kṛṣṇa consciousness, whatever he is able to do is good for him.”
Source: A.C. Bhaktivedanta Swami Prabhupada (2014 edition), “Srimad Bhagavatam”, Eleventh Canto, Chapter 03 – Text 41.