A gitte voch! In Parshas Bo we receive the mitzvos of Pesach and Pidyon HaBen in the midst of our Geulah. What follows is from what was said by seudas shlishis.
This is a fascinating part of the Torah if you sit and think of it. Amidst all the plagues, and the freeing of Klal Yisroel from Mitzrayim, we receive an incredible mitzvah: that of observing Pesach, the Korban (sacrifice), eating matzah, and telling over the story of how we were freed from Egypt. What makes this interesting is that it is not Toras Kohanim, popularly known as VaYikra (Leviticus), with all the other sacrifices and ritual observances. All other Yomim Tovim have their laws given over there, but Pesach specifically is given in the beginning of Yetzias Mitzrayim (leaving Egypt).
Everything in the Torah has an aspect that is eternal, even if it doesn’t appear as such on the face of it. What this is meant to teach us is that the avodas haPesach (service of the Passover) applies even in the depths of Golus (exile). Seeing that these mitzvos were given before the Yidden were out of Mitzrayim, not even to the Yam Suf (Sea of Reeds) yet, this is meant to teach us that in the midst of Golus we still must recount the stories of Hashem’s redemption and have Emunah. Through engaging with this aspect, that is Pesach, which is the aspect of Cheirus (freedom), even in the midst of Golus, we merit therefore to Geulah. Everyone must attain Geulah Yechidis (Personal Redemption) before we can merit the Geulah Shleimah (Complete Redemption). This is clear if we view this inyan through the story of the Baal Shem’s visiting Moshiach, asking Moshiach “When will you come, Master?” and the Moshiach’s answer “When your Torah spreads over the world as water from a wellspring, and everyone attains the ability to perform Yichudim (Spiritual unifications) as you and attains your level.”