अस्मिन्नस्य च तद्योगं शास्ति ॥ १९ ॥
asminnasya ca tadyogaṃ śāsti || 19 ||
asmin—In this; asya—its (the Jiva’s); ca—also; tadyogaṃ—mergence as that; śāsti—teaches.
19. (The Vedas) also teach of its (the Jiva’s) becoming (on the dawning of Knowledge) one with this (referred to in the passage under discussion).
Since the individual soul, on the dawning of Knowledge, becomes one with that which is referred to in the passage under discussion, the latter must be Brahman.
Hence “the self consisting of bliss” is in no way the principal topic of these texts. It is Brahman which is the support of everything that is dealt with as an independent entity in these texts.