yiras Hashem tehora

 The Midrash comments on the opening of our parsha:

 אֱמֹר אֶל הַכֹּהֲנִים – הֲדָא הוּא דִכְתִיב (תהלים י״ט:י׳): יִרְאַת ה׳ טְהוֹרָה עוֹמֶדֶת לָעַד, אָמַר רַבִּי לֵוִי מִיִּרְאָה שֶׁנִּתְיָרֵא אַהֲרֹן מִלִּפְנֵי הַקָּדוֹשׁ בָּרוּךְ הוּא, זָכָה וְנִתְּנָה לוֹ הַפָּרָשָׁה הַזּוֹ שֶׁאֵינָהּ זָזָה מִמֶּנּוּ וְלֹא מִבָּנָיו וְלֹא מִבְּנֵי בָנָיו עַד סוֹף כָּל הַדּוֹרוֹת, וְאֵיזוֹ זוֹ פָּרָשַׁת הַמֵּת, שֶׁנֶּאֱמַר: וַיֹּאמֶר ה׳ אֶל משֶׁה אֱמֹר אֶל הַכֹּהֲנִים בְּנֵי אַהֲרֹן.

What's the midah k'neged midah here?  What does yiras shamayim have to do with the parsha of tumas kohanim?

Shem m' Shmuel (5672) has a hesber in which he tackles this question by way of resolving a stira between the AR"I and the Zohar, but I don't understand such things, so I will do him the injustice of boiling what he says down to its essence: A person who has yiras shamayim keeps away from the tumah'dik things in this world that he is supposed to keep away from.  Midah k'neged midah, Hashem keeps the kohanim, who have yiras shamayim, away from the tumah and defilement of death.  The same, writes the Shem m'Shmuel, is true of tzadikim, who are zocheh to die b'neshika.

I would like to suggest a different hesber based on a well known gemara in Brachos (5a):

א"ר לוי בר חמא אמר ר"ש בן לקיש לעולם ירגיז אדם יצר טוב על יצר הרע שנא' רגזו ואל תחטאו. אם נצחו מוטב ואם לאו יעסוק בתורה שנאמר אמרו בלבבכם אם נצחו מוטב ואם לאו יקרא קריאת שמע שנאמר על משכבכם אם נצחו מוטב ואם לאו יזכור לו יום המיתה שנאמר ודומו סלה.

The gemara suggests various antidotes to combat the yetzer ha'ra -- learning Torah, reading shema -- and then says that if all else fails, think about the day of death and that will get rid of the yetzer.

The question is asked: if thinking about the day of death is the ultimate trump card against the yetzer, then why got through the process of first learning Torah, then if that doesn't work reading shema, etc.?   Just cut to the chase and think about yom ha'misa!  

Chazal apparently understood that taking the strongest medicine sometimes has unintended consequences that may not be desirable.  Sure, the patient will be cured, but at what cost?  In this case, Chazal understood that living life obsessed with the thought if impending death is not psychologically very healthy.  Sure, it works to ward off the yetzer ha'ra, but the costs of the cure are great.  Better to try safer methods first and hold this one back unless all else fails.

Last Sunday it was my FIL's yahrzeit, so we visited the cemetery in the morning, followed later that same day by a shiva visit to other relatives because my wife's aunt passed away.  In the back of our minds as well was the thought that just two weeks from now is the first yahrzeit of a cousin who unfortunately died in his 50's after a bout with cancer.  When you are in your 20's, it seems like 50+ is old, but once you get to your 50th birthday, your perspective changes completely.  The day last week was filled with the gloom of yom ha'misa.  Sometimes, for whatever reason, Hashem gives us one of those days to wake us up and remind us of what our priorities should be, but if every day were like that day, it would be very hard to get on with life.

What the Midrash is telling us, I think, is that Aharon and sons did not need days like that.  When you are overflowing with yiras shamayim, that is enough to keep the yetzer ha'ra at bay.  You don't need יזכור לו יום המיתה.  You don't need the medicine of tumas meis to give you the right perspective on life.