In the earlier sloka we have seen that Lord Krishna spoke about jnaani. Jnaani is a person who sees the self residing in the body, who sees the self leaving the body, through the knowledge that self alone exists. In this sloka he talks about an yogi.
15.11 – yatantah yoginah ca evam pasyanthi atmah ni avasthitam
Yatanto akrta atmanah na evam pasyanti achetasaha
Meaning of words:
Yatantah – who are diligent
yoginah – yogis with concentrated minds
Evam – the self under discussion
Pasyanthi – see
Atmah – the self
Avasthitam --- residing/existing
Yatantah --- after struggling also
Arkrta- atmanah – who lack self control
Na evam pasyanthi – do not see the self
Achetasah --- the non-discriminating ones
Meaning of sloka
Yogis with concentrated minds, with lot of struggle see the self and yogi’s who struggle, but do not have focused mind cannot see the self in oneself.
After Lord Krishna spoke about jnaani’s , now he speaks about yogis. A yogi is a person who has a concentrated mind and can contemplate on the self. Such yogis, who have strong mind, who can concentrate upon the self can see the self residing in all bodies, see self as leaving the bodies, and as the self getting associated with the vasanas and taking rebirth. Even though some people practice yoga, they lack the self control and hence cannot have focused mind, hence cannot contemplate on the self. Such people even after lot of struggle cannot see the self. These people lack viveka or discrimination between the real and unreal.
Thus Lord Krishna says that both yogi’s and jnaani’s can see the self, whereas a moodah cannot see it. Jnaani realizes or sees the self different from the body through knowledge. Yogi ,through practice of yoga, achieves a concentrated mind and contemplates on the self, and thus becomes a realized self.
So he shows the path to see the self as different from the body. So unless a person is a yogi or a jnaani, he cannot be realized.