Whatever people speak of as renunciation, know it to be verily yoga, O son of Pandu. For, without forsaking saṅkalpas (desires and desire-born deliberations), none ever becomes a yogi.
Whatever is said to be sannyāsa, renunciation, is nothing but yoga, points out Krishna. People differentiate sannyāsa from yoga, not discerning the essence and depth of both.
That activity is inseparable from life was clearly shown earlier (3.5). Where is then any question of leaving actions at all? Naturally renunciation denotes something deeper, inward, to be effected by and in the mind.
Mind can renounce only its inner products. And sanga is the only factor it can forsake. Sanga is always to whatever one does. So to renounce sanga, activity must first be prevailing. This makes activity indispensable.
In yoga, inner, mental renunciation is essential. But it is of sankalpa – imagination, expectation. As explained earlier, karma-yoga is the pursuit of karma, but with yoga-buddhi. Intelligence has to breathe in evenness to the mind in every action. And it is possible.