Complex sentence: In Hinduism, Brahman (') is "the unchanging reality amidst and beyond the world", which "cannot be exactly defined", but is "Sat-cit-ānanda" (being-consciousness-bliss) and the highest reality.
Split into simpler sentences: In Hinduism, Brahman (') is "the unchanging reality amidst and beyond the world", which "cannot be exactly defined". It has been described in Sanskrit as "Sat-cit-ānanda" (being-consciousness-bliss) and as the highest reality.