
Krishna describes how yogis perform actions: they use body (kāyena), mind (manasā), intellect (buddhyā), and senses (indriyaiḥ) to perform actions, but they've abandoned attachment (saṅgaṁ tyaktvā). The key phrase is 'ātmaśuddhaye'—for self-purification. This means yogis don't act for personal gain or to satisfy desires—they act for purification of the self. Actions are performed using all instruments—body, mind, intellect, senses—but without attachment to results. This is the practical method of karma yoga: use all your faculties, but act for purification, not for personal benefit.
How this ancient wisdom applies to your daily life

This verse describes the practical method of karma yoga: use all your faculties—body, mind, intellect, and senses—to perform actions, but abandon attachment. The purpose is self-purification, not personal gain. You don't need to stop using your faculties—you need to use them without attachment. Actions are performed using all instruments, but without attachment to results. This is the practical method: use everything you have, but act for purification, not for personal benefit.

Are you using your faculties with attachment to results, or for self-purification? Where are you acting for personal gain instead of inner growth? How can you use all your faculties while remaining detached?