Tathāgata is the epithet by which the Buddha most often refers to himself. It may mean one who has thus gone, to liberation, or thus come, like the buddhas before him. The texts teach that the Tathāgata after death cannot be described as existing, not existing, both or neither.
Tathāgata
“Thus gone” or “thus come”: the title the Buddha used of himself.
Also: Tathagata