the traditional translation as "you are that" is incorrect, and should be translated as "In that way [=thus] are you, Svetaketu."
ðə tɹɐdˈɪʃənəl tɹænslˈeɪʃən æz "juː ɑːɹ ðˈæt" ɪz ɪŋkɚɹˈɛkt, ænd ʃˌʊd biː tɹænslˈeɪɾᵻd æz "ɪn ðæt wˈeɪ ˈiːkwəlz ðˈʌs ɑːɹ juː, svˈɛɾɐkˌɛɾuː."