This year April overlaps, more or less, with the lunar month of Nissan. At the full moon of Nissan we retell our people’s core story as we celebrate Pesach, festival of our liberation.
As it says in the traditional haggadah:
We were slaves to a Pharaoh in Egypt, and the Holy One brought us forth from there with a mighty hand and an outstretched arm… Therefore it is incumbent on each of us to see ourselves as though we, ourselves, had been brought forth from Mitzrayim.