Therefore, always act without attachment the duty that must be performed, for the man who acts without attachment attains the Supreme.

Practical synthesis of Karma Yoga. Asaktaḥ — without attachment — is the key that transforms ordinary action into yoga.

Satataṃ — constantly — eliminates the excuse of “only when it suits me.” The pūruṣa — human being — who thus acts attains param — the Supreme, liberation. This is the promise: you need not renounce the world, only your attachment to it.