Isaac Luria

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

September 28, 2025 / 6 Tishri 5786 No Comments

Jacob’s Struggle With a Man: A Metaphor From Neuroscience

So the present passed over before him; and he himself lodged that night in the camp. And he rose up that night, and took his

December 4, 2020 / 18 Kislev 5781 No Comments

Leprous Cats and Angry Birds

In the Torah portion Tazriah (Leviticus 13), the Schrödinger cat[1] gets leprosy. Well, it’s not really leprosy, it’s a mysterious supernatural disease called tzara’as, nowadays translated

April 30, 2012 / 8 Iyyar 5772 1 Comment