Redemption of the Wise Son: by redeeming the one who doesn't know to ask

Through the redemption of the "son who doesn't know to ask", the one on the lowest level, comes about the redemption from Egypt of the Wise Son as well. Because from the fact that he [the Wise Son] has a question, this shows that he is in fact in a state of exile, for in a state of exile there is a need to nullify questions and arguments that come from the "other side" [of unholiness].

Chassidic discourse of the Lubavitcher Rebbe, "V'Higad'ta L'vincha Bayom Hahu", 11 Nissan, 5735 (1975)