εἰς εἱρκτὴν εἰσπίπτειν
From LSJ
ψυχῆς πείρατα ἰὼν οὐκ ἂν ἐξεύροιο πᾶσαν ἐπιπορευόμενος ὁδόν· οὕτω βαθὺν λόγον ἔχει → one would never discover the limits of soul, should one traverse every road—so deep a measure does it possess
Greek > English (Woodhouse)
be thrown into gaol, be thrown into jail, be thrown into prison