A hermit is a person who lives on his own, away from society.[1] This is distinct from a recluse, who avoids others and lives alone.
Hermits live in seclusion.[2][3] Hermits occur in the history of several religions.
↑Oxford English Dictionary: "A person who has withdrawn or secluded themself from the world; usually one who has done so for religious reasons, a recluse, a hermit".