Perennial: Perpetual or everlasting. Perennial truths are universally valid for all mankind, throughout history.
Tradition: An arrangement of symbols and rites which transmit perennial truths.
Lineage: A chain of beings who articulate a particular tradition.
Initiation: Inclusion within a lineage.
Adept: Skillful. In this context, one who can relate traditional forms to perennial truths.
Master: One who embodies the perennial truths indicated by a tradition. A source of tradition.
Religion: Traditional myths, stories and rites without necessarily any connection to meaning and perennial truth.