Having explained the 'field' (verses 6-7) and the process of 'knowledge' (verses 8-12), Krishna now shifts to the ultimate object of knowledge: the 'knowable' (jñeyam). He promises that understanding this will allow one to taste immortality (amṛtam). He defines this ultimate reality as the supreme Brahman—beginningless (anādimat), and existing entirely beyond the material dualities of cause (sat) and effect (asat).