The Ten Days of Nesira: A Mystical Journey of Separation and Union
By Alexander Poltorak לע”נ אבי מורי, אברהם שמשון ע”ה בן ראובן Between the jubilation of Rosh HaShanah and the solemnity of Yom Kippur lie ten
By Alexander Poltorak לע”נ אבי מורי, אברהם שמשון ע”ה בן ראובן Between the jubilation of Rosh HaShanah and the solemnity of Yom Kippur lie ten
I. Introduction Every year on Rosh HaShanah, the raw, unarticulated cry of the shofar cuts through silence. For Kabbalah, that cry is not mere ritual
… mi‑b’sari echezeh Elokah—From my flesh I behold G‑d (Job 19:26) Introduction – “In His Image” The Torah’s initial description of humanity is both profound and enigmatic:
And it came to pass, when he was come near to enter into Egypt, that he said unto Sarai his wife: “Behold now, I know

Introduction In this essay, I intend to draw a parallel between the singularity in space-time, such as the putative point of origin of the universe

The Temple Menorah served as a lighthouse, illuminating darkness and providing purpose and direction.

The Torah portion Tzav describes a ritual performed by Moses in consecrating Aaron as the High Priest (Kohen Gadol) and his sons as priests (kohanim):

The spectacle of the universe becomes so much the grander, so much more beautiful, the worthier of its Author, when one knows that a small
Structurally identical biblical accounts of creation, destruction, and restoration are viewed as a manifestation of dialectic triad thesis-antithesis-synthesis.

…[H]e who tries to cure the soul, wishing to improve the moral qualities, must have a knowledge of the soul in its totality and

In the biblical story of the creation of Adam, the Torah states: Then the Eternal G‑d formed man of the dust of the ground, and

Now the earth was unformed and void. Genesis 1:2 We have a big problem in cosmology: the problem of the initial conditions of the universe at

Yom Kippur means “The Day of Atonement.” Some view it as a frightening day full of regrets of the past and anxiety for the future.

A light shalt thou make to the ark…with lower, second, and third stories shalt thou make it. (Genesis 6:16) We mentioned in the previous posts

Introduction “In the beginning G‑d created the heavens and the earth.” (Genesis 1:1) “In the beginning G‑d created the heavens and the earth,” the Torah

A Study in Form and Matter And Moses prayed for the people. And the Eternal said unto Moses: “Make thee a fiery serpent, and set it

In the beginning, G‑d created the heaven and the earth…[1] (Genesis 1:1) Classical biblical commentators have given the first words of the Torah many

There is a Biblical Commandment to count the days between the Passover and Shavuot, the “Feast of Weeks” (a.k.a. Pentecost). We start counting on the

And every meal-offering of thine shalt thou season with salt; neither shalt thou suffer the salt of the covenant of thy G‑d to be lacking

In the beginning G‑d created the heaven and the earth. (Genesis 1:1) The first verse in the Torah is key to understanding the fundamentals

And the Eternal G‑d said: “It is not good that the man should be alone; I will make him a helpmate opposite him.” (Genesis 2:18)

As we discussed in the earlier post, The Tree of Knowledge as a Metaphor for Superposition of States and Heisenberg’s Uncertainty Principle, the Heisenberg uncertainty
And the messengers returned to Jacob, saying: “We came to thy brother Esau, and moreover he cometh to meet thee, and four hundred men with

Jews have a very strange custom to take four species (Heb. arba’a minim)—a fruit of a citron tree (etrog), a branch of a date palm (lulav), boughs from the myrtle tree (chadassim),

Meditations on the Maaseh Merkavah – II This post is a sequel to my previous post, “Space – Between Future and Past.” For background information,

Meditations on the Maaseh Merkavah – I We do science by studying nature. We study physics in a lab, peering into space or working out

The Special Theory of Relativity, published by Albert Einstein in 1905, was a game changer. It ushered the era of new physics dubbed by some

And all the tithe of the herd or the flock, whatsoever passeth under the rod, the tenth shall be holy unto the Lord.” (Leviticus 27:32)

When thou shalt besiege a city a long time, in making war against it to take it, thou shalt not destroy the trees thereof by
The previous Lubavitcher Rebbe, the Rebbe Rayatz (a.k.a. the Fridriker Rebbe) told the story about his father, the Rebbe Rashab. Once the brother of Rebbe

And Moses turned, and went down from the mount, with the two tablets of the testimony in his hand; tablets that were written on both

Today, Yud Shvat, is the yartzeit (anniversary of passing) of the sixth Lubavitcher Rebbe, Rabbi Yosef Yitzchak Schneersohn, a.k.a. the Rebbe Rayatz, or the Frierdiker

Now, therefore, write ye this song for you, and teach thou it the children of Israel.” (Deut. 31:19) The four known fundamental forces are: gravitational
In the Torah portion Emor (Leviticus 21:1–24:23), we are instructed to abstain from work every seventh day on Shabbat. Next week’s Torah portion, Behar, continues
Last week Torah portion, Emor, speaks about the prohibition of working on Shabbat. In fact, the Talmud enumerates precisely 39 categories of labor forbidden on

And it came to pass at the time that the flock conceived, that I lifted up mine eyes, and saw in a dream, and, behold,
When G‑d created the first humans, Adam and Eve (Chavah), He created them as one. And G‑d created man in His own image, in the
In this Torah portion, Vayechi, Jacob, gathers his children to reveal to them “Ketz HaYamim”–“the End of Days.” Rashi explains that Jacob’s intention was to

I grew up in Russia and was raised on the metric system based on decimal arithmetic. When we immigrated to the U.S., I had to
Today is Yud Tes Kislev — Rosh HaShanah of Chasidut. Today I received two gifts, which I’d like to share. Lately, while learning Samach Vov,

These are the journeys of the children of Israel… (Numbers 33:1) When G-d brought the Jews out from Egypt, He brought them out with the mystery of
Do you like riddles? Here is a riddle – what do these two figures represent in the context of Exodus? No Idea? How about
Bo: Exodus 10:1 – 14:16 The Erev Shabbat parshat Bo (the Eve of Sabbath of the week when we read the Torah section Bo) 2014

There is a continuous thread about the mastery of time that weaves through the last chapters of the book of Genesis (Bereshit) and continues through

The story of entangled twins is continuing in the Torah portion Vayeitzei (Genesis 28:10–32:3.) Structurally, it is very similar to the story in the previous Torah
This Rosh HaShanah I had the strangest dream. I dreamed that I was giving a lecture in cosmology at a university when I suddenly realized

The Hebrew words taharah and tumah, which are the subjects of the Torah portion of Chukat (Numbers 19:1–22:1), are usually translated as ritual purity and