Gnostician

One who possesses inner spiritual knowledge or wisdom and puts it into practice.

The Gnostician? He knows. And he acts.

Gnostician

A respected practitioner of the first-hand experiential form of knowledge and wisdom known in the Greek philosophical lexicon as gnosis; distinguished from other forms of knowledge, such as episteme, doxa, et al.

Yo, did you hear that word of experiential knowledge my boy just dropped on social media last week? That man is a bona fide gnostician.