How does practicing mindfulness and detachment (vairagya) free the consciousness from worry?

The mind, being by nature restless and anxious, requires both sustained practice (abhyasa) and detachment (vairagya) to be stilled, as Lord Krishna instructs in BG 6.35: "It is undoubtedly very difficult to curb the restless mind, but it is possible by suitable practice and by detachment." Mindfulness establishes this practice by anchoring consciousness in the present moment of devotional service, while detachment frees the mind from the false identification with material outcomes that breeds worry. When one understands that the self is not the doer but a servant of the Supreme, the consciousness naturally settles, and anxiety about results dissolves because the mind no longer clings to fleeting worldly achievements. This liberation from worry is realized when one performs prescribed duties without attachment to the fruits, surrendering all results to the Lord, as stated in BG 2.47: "You have a right to perform your prescribed duty, but you are not entitled to the fruits of action." Such detachment is not passive indifference but active engagement in Krishna consciousness, where one acts like the lotus leaf untouched by water, as described in BG 5.10: "One who performs his duty without attachment, surrendering the results unto the Supreme Lord, is unaffected by sinful action, as the lotus leaf is untouched by water." Thus, by offering every action to the Divine, the practitioner transcends the dualities of gain and loss, and consciousness rests in eternal peace, free from the torment of worry.