Skip to main content

Thought for the Day: Erev Tavshilin -- What It Helps

The Torah wants us to live in the here and now; each and every here and now.  It makes sense when you realize that each here and now is a brand new creation.  Given that, it's a bit funny to say, "I'll prepare now for tomorrow," when tomorrow doesn't even exist yet.  Moreover, it won't exist until it is needed, and it will be created to provide whatever purpose the Creator decides.

That's true during the week just as a matter of philosophy.  On Shabbos and Yom Tov, though, it's a matter of halacha.  One is not allowed to prepare from one day to the next.  Not on Shabbos for Sunday, obviously, but also from Yom Tov to Shabbos and even one day of Yom Tov to the next.  That's why we don't fold our tallis after davening in the morning (the main reason, any way), don't light candles for second day of Yom Tov until way after dark, and have very late s'udos on second day Yom Tov evening.  We're all used to that that.

However, when we have one of our beloved "three day yontifs" (as we will (again) have this year for Rosh HaShana, Sukkos, and Shmini Atzeres), or even a first day of Yom Tov on Friday (as can happen with Shavuos), then things are trickier.  You can't cook on Shabbos, so don't have the option of waiting to start cooking after Yom Tov.  Chazal, therefore, provided us with "eiruv tavshilin"; the most common of the Eiruv Trilogy (the other two being chatzeiros and t'chumim).

Eiruv means "mixture".  In this case, by beginning our Shabbos preparations before Yom Tov, we are allowed to continue those preparations on Yom Tov itself.  Our Shabbos preparations on Yom Tov are thereby "mixed in" with preparations that started before Yom Tov while it was still just an ordinary day.  The main activities of preparing for Shabbos involve cooking and baking, so we take two foods -- one baked (I usually use matzah) and one cooked (I usually use either fish or hard boiled egg).  The Mishna Brura poskens that even if one made his eiruv with only a cooked food, he would still (b'di'avad) be allowed to bake; that is, the cooked food covers everything.  Using only a baked food (not a casserole, which is still called "cooked" in halacha, but bread or cookies) is problematic and does not allow one (even b'di'avad) to cook.  So don't do that.

R' Fuerst has two very cool shiurim on this topic; you should listen here and here.  Listen to the end... that where the kulos are.

Comments

Popular posts from this blog

Thought for the Day: Using a Mitzvah Object for Non-Mitzvah Purposes

As I am -- Baruch HaShem -- getting older, I am more cognizant of the fact that I'd like to stay as healthy as possible right up the moment I leave this world.  Stuff hurting is not the problem (I am told there is an old Russian saying that once you are 40, if you wake up and nothing hurts -- you're dead), stuff not working, however, is a problem.  To that end, for several years now I commute to work by bicycle (weather permitting, 30 minutes on an elliptical machine when weather does not permit).  I recently took up some upper body weight training.  Not because I want to be governor of California, just simply to slow down loss of bone mass and extend my body's healthy span.  Simple hishtadlus.  I have an 18 month old grandson who is just the right weight for arm curls (yes... I am that weak), so I do about 10 reps when I greet him at night.  He laughs, I get my exercise; all good.  (Main problem is explaining to the older ones why zeidy can't give them the same "…

Thought for the Day: Thanking HaShem Each and Every Day for Solid Land Near Water

Each and every morning, a Jew is supposed to view himself as a new/renewed creation, ready for a new day of building his eternal self through Torah and mitzvos.  We begin the day with 16 brachos to praise/thank/acknowledge HaShem for giving us all the tools we need to succeed.  We have a body, soul, and intellect.  We have vision, mobility, and protection from the elements.  Among those brachos, we have one that perhaps seems a bit out of place: רוקע הארץ על המים/Who spreads out the land on/over the water.  After all, it's nice to have a dry place to walk, but does that compare to the gratitude I have for a working body and vision?  As it turns out, I should; as explained by the R' Rajchenbach, rosh kollel of Kollel Zichron Eliyahu (aka, Peterson Park Kollel).  Your best bet is to listen to the shiur; very distant second is to continue, which I hope will whet your appetite for the real thing.

First... since we have dry land, I don't have to slog to work through even a foot…

Thought for the Day: Hydroponically Grown Humans... I Feel Sick

I am quite openly not at all objective about abortion in particular and the treatment of human embryos and fetuses in general.  I am, after all, the survivor of a failed abortion attempt.  Not "thought about it, but couldn't go through with it"; not "made appointment, but then chickened out at the lost moment"; but, "tried a procedure, but was unsuccessful in attempt to abort".  Nonetheless, I try very hard to listen to the liberal arguments (which I also used to chant as part of the general liberal catechism), and am genuinely empathetic to the plight of women who find themselves in that difficult position.

What I heard on NPR this morning, however, has left me feeling physically ill.  You can read about it, if you like, but here's the bottom line:  Scientists in Cambridge have achieved a new record, they fertilized a human ova and then kept it alive in vitro (that is, in a test tube/petri dish in a laboratory) for 14 days.  The scientist involve…