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Torah · 3:45

Sefirah: The Secret of the 310 Worlds - Rabbi Yaakov Asher Sinclair

1.3K views · May 1, 2026

Rabbi Yaakov Asher Sinclair

A mystical exploration of the linguistic and spiritual roots of Sefirat HaOmer and its connection to clarity and sapphire.

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The opening of this shiur, in Rabbi Yaakov Asher Sinclair’s own words — taken from the captions, so names and Hebrew terms may be approximate.

The Torah commands us to count the days from Pesach to Shavuot, and that's called Sefirat HaOmer. The name is puzzling. The Omer was a one-time barley offering brought in the temple on the second day of Pesach. Why define the entire period of counting by a one-time korban? Wouldn't it be more precise to call it the count to Shavuot or something like that? Sefirah commonly means counting, but it also means clarification or illumination. The Torah itself describes Even Sapir, a sapphire-like clarity beneath the divine presence. Sapir and Sefirah have the same root. But what are we clarifying in the Omer? The gematria, the numerical equivalent of Omer, is 310. Ayin is 70, Mem is 40, Resh is 200. When you add them together, 70 and 40 and 200, you get 310. 310 is also the gematria of Yesh. Yud 10, [music] Shin 300. Yesh means there is. Yesh means existence itself. [music] The Mishna in Uksin explains that in the

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  1. 0:00The Torah commands us to count the days from Pesach to Shavuot, and that's called Sefirat…
  2. 0:32presence. Sapir and Sefirah have the same root. But what are we clarifying in the Omer?…
  3. 1:03world to come, Hakadosh Baruch Hu, Hashem, will grant each tzaddik 310 worlds. As it says,…
  4. 1:34Rabbeinu's request to Hashem, "Harei'ni na kavodcha." Show me, please, your glory. Moshe Rabbeinu wanted to…
  5. 2:04letters, Shin, Dalet, and Yud. Which spells one of the divine names, Sha and Dai. The…
  6. 2:35see as it really is, [music] the face of Hashem. The face. Moshe was only shown…
  7. 3:07beyond the Dalet of this world. Each day of the Omer refines us, aligns us with…

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