The holiday of Passover, which started Monday night and continues through next Tuesday, carries with it a number of food and drink prohibitions. They are extensive and highly convoluted. But the essence of it all is that no grain, or grain-like, or grain-derived, products may be consumed–except (as is the case with matza) when it’s guaranteed that the grain has not been exposed to moisture for more than a few minutes, and therefore no leavening has begun. “Leavened” food is what the Bible forbids on the festival of Passover. A Jew’s not even supposed to own any this week, let alone consume any.The challenge of going with out bagels and pasta is significant. But even more, is As with all things in Judaism, there is a very wide range of practice and observance. But for many