"Zeh hayom asa Hashem," "This is the day that G-d has made, let us
rejoice in it."
What is the reason behind the holiday of Shmini Atzeres? Pesach (Passover)
commemorates freedom from Egyptian bondage, Shavuos commemorates giving of the
Torah and the two tablets of the Ten Commandments at Har Sinai (Mount
Sinai).
Shmini Atzeres does not commemorate any historic event or miracle.
The reason behind Shmini Atzeres is as follows: During all the holidays, the
Jews would travel to the Bais HaMikdash with offerings to Hashem (G-d). It
is like a father, whose family is all visiting. When it is all over and time for
everyone to go home the father says, "Stay a while longer." Hashem, as it were,
says, "Kasheh alai preidaschem...Your parting is difficult for Me. Stay a while
longer" So Hashem made the chag (holiday) of Shmini Atzeres - not for any
historic cause, but, just to extend the stay. Just to have us around a bit
longer in his full and glorious presence.
There is another way to understand the words "Kasheh alai
preidaschem...Your parting is difficult for Me." It is referring to the fact
that we are now parting each other (Yaaneh Shel Torah). Hashem loves when we are
all together in kinship and unity.
Queen Izevel, the wicked wife of King Achav, ordered her servants
to kill all the prophets of Hashem. Many were slain but 100 prophets were saved
due to the valiant efforts of Ovadya. He hid them all, 50 in one cave and 50 in
another cave and secreted them food and water every day at great personal risk.
Some of the Biblical commentaries point out that the reason he hid them in two
caves was because he could not find one cave big enough for all one hundred.
That is to say that it was not for some strategic reason, but only because there
was no choice for it is important for Jews to be together. More can be
accomplished. More spiritual greatness can be achieved.