Krishna immediately names the hidden enemy Arjuna asked about in Verse 36. It is 'Kāma' (lust/intense desire). Krishna says: It is Kāma alone, and it is Krodha (anger) alone (kāma eṣa krodha eṣa). They are the same entity, born directly from the mode of passion (rajo-guṇa-samudbhavaḥ). Krishna gives this enemy two terrifying titles: 'mahāśano' (the all-devouring glutton) and 'mahā-pāpmā' (the great sinner/evil). He commands Arjuna: Know this (viddhi enam) to be the ultimate enemy in this world (iha vairiṇam).