Isaac’s Blessing
Stars, Sand… and Silence Abraham’s blessings sparkle with cosmic imagery—stars above, dust below. But when God blesses Isaac, the patriarch of gevurah, something extraordinary happens:
Stars, Sand… and Silence Abraham’s blessings sparkle with cosmic imagery—stars above, dust below. But when God blesses Isaac, the patriarch of gevurah, something extraordinary happens:
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

Alexander Poltorak Abstract This essay addresses the anigmatic statement of the Jewish Sages, stating that G-d created this world with the letter Heh and the
… 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:

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.

This is the fourth installment in the series of essays on the nature of the soul. The first three installments can be found here: What

…[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.

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

The Torah portion Vayakhel deals with the construction of the Mishkan, i.e., the “Tabernacle.” In Kabbalah, the Mishkan is viewed as a microcosm that represents

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

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 Lord appeared unto him in the plains of Mamre, as he sat in the entrance of the tent in the heat of the
And Abraham drew near, and said: ‘Wilt Thou indeed sweep away the righteous with the wicked? Perhaps there are fifty righteous within the city; wilt

Then drew near the daughters of Zelophehad …. of the families of Manasseh, the son of Joseph; and these are the names of his daughters:

The Lord spoke to Moses, saying: Speak to the children of Israel and you shall say to them that they shall make for themselves fringes

Meditations on the Maaseh Merkavah – IV This is the fourth and the final installment in the series of posts related to Ezekiel’s prophesy, Ma’aseh

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
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

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
We all know that we leave in a three-dimensional world. Up-down, right-left, forward-backward – these are well-familiar to us directions in three dimensions of space
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

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
The holiday of Passover – Pesach – is called zman cheruteinu– time of our freedom. As we have discussed many times on this blog (see
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

Speak to the children of Israel and have them take for you a perfectly red unblemished cow, upon which no yoke was laid… The cow