[Advaita-l] The meaning of Sat in "सदेव सोम्य" Shruti

[Sudhanshu Shekhar]

Namaste,

I have a query - the word "sat" used in ChhAndogya 6.2.1 सदेव सोम्येदमग्र
आसीदेकमेवाद्वितीयम् refers to nirvishesha Brahman or
ajnAna-vishishTa-Brahman?

Similarly the merger into "sat" during sushupti spoken through सता सोम्य
तदा सम्पन्नो भवति refers to which sat? Nirvishesh-Brahmam or
ajnAna-vishishTa-Brahman?

Regards.
Sudhanshu Shekhar.