“ Those whose intellect is unattached everywhere, who have mastered the mind, and are free from desires by the practice of renunciation, attain the highest perfection of freedom from action ”
Source: Bhagavad Gita 18:49
There is no one who can remain without action even for a moment. Indeed, all beings are compelled to act by their qualities(Gunas) born of material nature(Prakriti)
Renunciants who are desireless and wrathless, mind-controlled, and Self-realized, are completely free both in this world and in the beyond.
Undoubtedly the mind is fickle and unruly; but by yoga practice and by dispassion, the mind may nevertheless be controlled.
When a man completely relinquishes all desires of the mind and is entirely contented in the self, by the self, he is then considered to be settled in wisdom
For those who have conquered the mind, the mind is their friend. For those who have failed to do so, the mind acts like an enemy.