श्री भगवानुवाचमय्यावेश्य मनो ये मां नित्ययुक्ता उपासते। श्रद्धया परयोपेतास्ते मे युक्ततमा मताः ॥

mayy āveśhya mano ye māṁ nitya-yuktā upāsate śhraddhayā parayopetās te me yuktatamā matāḥ

They who with mind fixed on Me ever harmonised worship Me, with faith supreme endowed, these, in My opinion, are best in yoga.

In plain words: Krishna says the best in yoga are those who keep their minds on him and always worship him with deep faith.