Although Passover is by far the most memorable and beloved holiday of the entire Jewish calendar it also brings the greatest number of details requirements and restrictions. Observing each of these elements is essential during this week of preparation and especially for the Seder itself. To list them all would (and does) fill an entire book.
There are the Torah commandments and there are the rabbinical commandments. There are also the customs that, surprisingly, vary tremendously between the Sephardim and Ashkenazim. There are the unique customs that have developed around the diaspora. For example, Indian Jews eat different foods on Passover than Temanni Jews, and some Jews will dip their matzah in their soup, while others would be aghast at such a move! Some will eat beans, and some would never do such a thing. There are strict requirements as to the minimum amounts of matzah, bitter herb and wine that must be consumed, and only within a specific period of time. And perhaps most important of all are the amazingly strict requirements not to have any leavening or related products in our possession for the entire week. Confusing this even more is that some authorities say certain foods are leavened while others swear that they are not.
On and on, the list of requirements that ensure a successful Seder can certainly seem overwhelming. It is no wonder that the favorite question a sharp student will ask his rebbe right before the Seder is, "What is the most important thing that I must watch out for?"
Last Pesach, right before leaving the Kotel to rush home for the Seder, a rabbi friend of mine asked me that very question. To his great surprise, I immediately answered, "Make sure that the children have a good time." He looked at me as if I might be joking; his face was all twisted up. He wanted to know some great Kabbalah about the four cups of wine, or maybe how to lean to the side when drinking them. Or maybe I could give him some great Chassidic teaching on how to do teshuva (repentance) while trying to gulp down that impossibly hot horseradish. AAGHHHH! But, no, I simply said, "Make sure that the children have a good time."
The next afternoon, he came up to me, smiling. He's a smart guy and he took my words to heart. He said, "It was the best Seder ever. The kids were great. Everyone was laughing. We all enjoyed ourselves tremendously. But tell me, how can you really say that keeping the kids happy was the most important thing to watch out for? After all, this is a very serious holiday."
I explained, "There is only one reason we have the Seder at all: to remember the Exodus from Egypt. And there is only one reason why we must remember the Exodus from Egypt: so we will remain Jews. If we forget our past, there will be no reason to go on as a people. There is only one way for us to remain Jews, and that is to raise Jewish families. Without the children coming back next year, there won't be any Jewish families. It's for the kids' sake that we go through all this each year and, God willing, we will get to do it for them again next year, too. And if they have a good enough time, then surely someday we will even get to do it for their kids."
Have a happy Pesach. It's essential.