μυσταγωγία
From LSJ
ὁδὸς ἄνω κάτω μία καὶ ὡυτή → the road up and the road down is one and the same, the upward path and the downward path are the same
English (LSJ)
ἡ,
A initiation into the mysteries, Plu.Alc.34, Vett. Val.359.22, Jul.Or.5.172d. II mystical doctrine, Iamb.Myst.1.1; ἡ Χαλδαίων μ. Dam.Pr.131, cf. Procl. in Prm.p.779 S. (μυσταγορίας codd.). III divine worship, Just.Nov.58.
German (Pape)
[Seite 223] ἡ, die Einführung in die Mysterien, Plut. Alc. 34.