ज्ञानयज्ञेन चाप्यन्ये यजन्तो मामुपासते।
एकत्वेन पृथक्त्वेन बहुधा विश्वतोमुखम्।।9.15।।
9.15. [Of them] some worship Me by knowledge-sacrifice and others by offering sacrifices; [thus] they worship Me, the Universally-faced [either] as One [or] as Many.
9.13-15 Mahatmanah etc., upto Visvato-mukham. Divine nature i.e., of goodness. Offering sacrifices : i.e., by means of sacrifices with the external materials. But others worship Me with knowledge-sacrifice only. Hence through knowledge some [worship Me] as One, while others [worship Me] as Many through the action-Yoga. However all conceive Me alone, as their highest goal. But, action certainly abounds in the idea of duality, because it is coextensive with hosts of different causes (karakas). So how can it lead to the Absolute state ? It is answered [as] :
Jnaanayajnena chaapyanye yajanto maamupaasate; Ekatwena prithaktwena bahudhaa vishwatomukham.
jñāna-yajñena—yajña of cultivating knowledge; cha—and; api—also; anye—others; yajantaḥ—worship; mām—Me; upāsate—worship; ekatvena—undifferentiated oneness; pṛithaktvena—separately; bahudhā—various; viśhwataḥ-mukham—the cosmic form