सर्वकर्माणि मनसा संन्यस्यास्ते सुखं वशी
नवद्वारे पुरे देही नैव कुर्वन्न कारयन्
sarvakarmāṇi manasā saṃnyasyāste sukhaṃ vaśī
navadvāre pure dehī naiva kurvanna kārayan
TRANSLATION
The embodied self, mentally resigning all actions as belonging to the city of nine gates (i.e., the body) and becoming self-controlled, dwells happily, neither himself acting nor causing the body to act.
PURPORT
The embodied self who is self-controlled, renounces all actions to the city of nine gates, i.e., the body with its sensory and motor functions which are nine in number. He discriminates that all actions are due to conjunction of the self with the body which is rooted in previous Karmas, and is not by Its own nature. [It means that the self merely rests in the body, without any identification with bodily activities.]
Sri Krishna now teaches the natural condition of the self as It is: