The clause 'That is the Self of me, within the heart' designates the
embodied soul by means of a genitive form, while the object of
meditation is exhibited in the nominative case. Similarly, a text of the
Vâjasaneyins, which treats of the same topic, applies different terms to
the embodied and the highest Self, 'Like a rice grain, or a barley grain,
or a canary seed, or the kernel of a canary seed, thus that golden
Person is within the Self' (Sat. Br. X, 6, 3, 2). Here the locative form,
'within the Self,' denotes the embodied Self, and the nominative, 'that
golden Person,' the object to be meditated on.--All this proves the
highest Self to be the object of meditation.