Of such a quality/nature, being in such a state/condition;
he who comes and goes in the same way;
Gautama Buddha, Buddhist.
“The one who has gone to suchness” or "The one who has arrived at suchness".
The one gone to the state of the Buddhas, free of all afflictions of karma and rebirth.
See
buddha,
tat,
gata
and
tayata.
See also
wikipedia.