In the mitzvot/instructions for celebrating the Holiday of Passover, חג פסח, חג חרות The Holiday of Herurt--The Engraving of Gd's Commandments into Our Souls and Beings, we are told to feel as if we exited from Egypt. We should not be disengaged from what happened to our ancestors, because they are us, and we are them.
Chazal, our Sages say that all Jewish Souls, including those who are righteous converts to Judaism were together at Mount Sinai pledging:
נעשה ונשמעAlso many (if not most) of the mitzvot/commandments Gd commanded us have the "because I took you out of the Land of Egypt" in their wording.
We will do and we will listen/obey
We are connected.
We are one People.
We pray in the plural.
Jewish History happened to us, too, and it can happen again, the rewards and the punishments.
We must never take for granted that no matter what we do, Gd will save us. That's a distortion of the truth. Gd will make sure a remnant remains to begin anew, but if we do not follow Gd's commandments, then we may find ourselves yet again exiled.
This is a very special year on the Jewish Calendar. It happens rarely. All Jews are required to eat food Kosher for Passover for eight days. Normally, in Israel the restrictions are for seven days only, while out of Israel they have an additional day, but this year the day after Passover is Shabbat and we can't prepare chametz, nor can we open the chametz closets until a couple of hours after Shabbat. So, we are all united.