यज्ञशिष्टामृतभुजो यान्ति ब्रह्म सनातनम्।
नायं लोकोऽस्त्ययज्ञस्य कुतो़ऽन्यः कुरुसत्तम।।4.31।।
4.31. The eaters of the sacrifice-ordained (or sacrificial remnant) nectar, attain the eternal Brahman. [Even] this world is not for a non-sacrificer, how can there be the other ? O best of the Kurus !
4.31 Yajna-etc. They enjoy the nectar of the Parananda and the Nirananda, which is of the nature of relaxing in their own Self and which has been ordained-i.e., brought about - by the sacrifice and which is the remnant of the sacrifice in the form of satisfying [the deities of] their own sense-organs. Yet, remaining as Brahman Itself, they get themselves mixed [in this mundane life] to their heart-content. Here we refrain [ourselves] from the free talk of clearly disclosing what is highly secret. Further, here a good amount of tasty secret has been kept well hidden. Yet, this becomes an object of [actual] chewing and [thus] becomes the cause for enjoying (realising) what is Real, in the case of those persons whose [bodily and internal] elements have been ealised by the powerful medicines of the tradition learnt from the revered teachers, pleased with service, laden with very assiduous devotion. In this context other explanations have been offered by [other] commentators. However, let the intellectuals weigh and decide for themselves, those explanations and the etymological interpretations offered by our revered preceptors. So, look ! What is the use of the sport of criticising the statements of those commentators ? Hence let us stick to only what we have begun with.
Yajnashishtaamritabhujo yaanti brahma sanaatanam; Naayam loko’styayajnasya kuto’nyah kurusattama.
yajña-śhiṣhṭa amṛita-bhujaḥ—they partake of the nectarean remnants of sacrifice; yānti—go; brahma—the Absolute Truth; sanātanam—eternal; na—never; ayam—this; lokaḥ—planet; asti—is; ayajñasya—for one who performs no sacrifice; kutaḥ—how; anyaḥ—other (world); kuru-sat-tama—best of the Kurus, Arjun