n~a^na = sankha^rupekkha^-n~a^na (q.v.).
”equanimity”, also called tatra-majjhattata^ (q.v.), is an ethical quality belonging to the sankha^ra-group (s. khandha) and should therefore not be confounded with indifferent feeling (adukkha-m-asukha^ vedana^) which sometimes also is called upekkha^ (s. vedana^).
upekkha^ is one of the 4 sublime abodes (brahma-viha^ra, q.v.), and of the factors of enlightenment (bojjhanga, q.v.). See Vis.M. IV, 156ff.