This is the grand, thundering conclusion to Chapter 3. Krishna brings all his tactical advice into one final strike. 'Evaṃ' (Thus), having realized that the true Self is completely superior to and distinct from the material intellect (buddheḥ paraṃ buddhvā), you must steady and support the lower self [the mind] by the higher Self (saṃstabhya ātmānam ātmanā). Having established this unbreakable internal fortress, O mighty-armed one (mahā-bāho), strike down and slay (jahi) this terrifying, formidable enemy (śatruṃ durāsadam) which takes the form of lust (kāma-rūpaṃ).