Brahman is non dual, bheda is in terms of upAdhi

Brahman is the sat vastu, that is non dual - the difference is only in terms of upAdhi , the upAdhi is different , kArana upAdhi and kArya upadhi, thus upAdhi differences exist. Body mind complex is an upAdhi, that is kAryam and maya upAdhi is karana upAdhi, and atma is the non dual satchit that is the adhistAnam. This adhistAanam is akarta abhokta pure chit, its sAkshi chaitanyam, the chidabhasa etc are upAdhi sahita chit, where chit itself is still satchit brahman, but with upAdhi gets the name chidabhasa, isvara etc. the individual knower and the total knower isvara. As the individual knower one can know isvara , one can experience isvara, and in that experience there is the upAdhi bheda.