Pesach - Time of our freedom. When Hashem took us out of Egypt - the Governing system of the ancient world. In Hebrew it is Mitzrayim - the place of tzar (narrow, affliction, enemy). By taking up G-d's order (the seder), executing that order correctly according to the exact protocol determined by our sages on the allocated Night, when G-d, Himself, watches over His people, we acknowledge, submit and enter into His order (system) of Governance. The Zoar says that this is compared to building the Ark of Noah like in ancient times and will serve as a place of refuge in the days to come for those who obediently searched Him out.
May we see the Geula Shlemah in our days. May we celebrate again at the at the Beit HaMikdash in Rebuilt Jerusalem. Soon, in our days. Chag Sameach to all!