The Haggadah teaches us that בכל דור ודור חייב אדם לראות את עצמו כאילו הוא יצא ממצרים: In every generation a person is obligated to see themselves as if they were liberated from Egypt. In Hebrew, Egypt is known as ‘Mitzrayim,’ a narrow place. The seder asks that we identify with those currently oppressed, marginalized, or restricted; those who yearn and fight for freedom. Not out of pity, but because we are or have been them.
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My history with haggadot is probably typical but certainly multi-layered. I grew up with the venerable Union Haggadah. In rabbinical school I was exposed to its successor, the “Baskin” Haggadah. I then worked for an HUC administrator in researching various haggadot. Even in the mid-eighties there were countless varieties, including one for vegans: The Haggadah for the Liberated Lamb. Around this time David Moss was previewing his soon-to-be famous haggadah, Song of David. I joked to my fiancée that she could have that instead of an engagement ring. She took me seriously and we use the haggadah (alas, only one copy) every year.