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Sefer HaTemunah

Sefer HaTemunah is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Sefer HaTemunah rather than just read about it. In short: Sefer HaTemunah (Hebrew: ספר התמונה) (lit. "Book of the Figure", i.e. shape of the Hebrew letters) is a 13–14th century kabbalistic text. It is quoted in multiple sources on Halakha (Jewish religious law).

Sefer HaTemunah — main illustration
Sefer HaTemunah — illustration

Key takeaways

  • Sefer HaTemunah belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Sefer HaTemunah to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Sefer HaTemunah from memory before moving on to harder problems.

Reference excerpt

Sefer HaTemunah (Hebrew: ספר התמונה) (lit. "Book of the Figure", i.e. shape of the Hebrew letters) is a 13–14th century kabbalistic text. It is quoted in multiple sources on Halakha (Jewish religious law).

Origins

Sefer HaTemunah was probably written anonymously in the 13th or 14th century, but it is pseudepigraphly attributed to Nehunya ben HaKanah and Rabbi Ishmael, tannaim of the 1st and 2nd centuries. According to Hebrew Manuscripts in the Vatican Library Catalog, the work was composed in the 1270s. The first extant edition was published in the city of Korzec in Poland in 1784. Aegidius of Viterbo, a 15th-century cardinal, was influenced by Sefer HaTemunah, as can be seen in his writings Shekhinah and On the Hebrew Letters.

Concepts

Sabbatical cycles One of the main concepts in Sefer HaTemunah is that of the connection of the Sabbatical year (Hebrew: Shmita) with sephirot and the creation of more than one world. The author of Sefer HaTemunah believed that worlds are created and destroyed, supporting this theory with a quote from the Midrash, "God created universes and destroys them." The Talmud (Sanhedrin 97a) states that "Six thousand years shall the world exist, and one [thousand, the seventh], it shall be desolate". Sefer HaTemunah asserts that this 7000-year cycle is equivalent to one Sabbatical cycle. Because there are seven such cycles per Jubilee, the author concludes that the world will exist for 49,000 years. The Alter Rebbe writes in Torah Ohr,that the author of Sefer HaTemunah believed that the world was currently in the second Sabbatical cycle, corresponding to Gevurah (Severity), which occurs between the cycles Chesed (Kindness) and Tiferet (Adornment).The Alter Rebbe goes so far to say that in the previous Sabbatical cycle there was a completely different world altogether, made up of its own unique purpose and even its own Torah, all in line with the Attribute of Chesed. Sefer HaTemunah offers a description of the final Shmita, Malkuth (Kingdom), as "distinctly utopian" in character. This may explain why the book was widely embraced by Kabbalists.

Missing letter

Hebrew letters are invested with special meaning in Judaism in general, and in Kabbalah even more so. The creative power of letters is particularly evident in Sefer Yetzirah (Hebrew: book of creation), a mystical text that tells a story of the creation which is based on the letters of the Hebrew alphabet, a story which diverges from that in the Book of Genesis. The creative power of letters is also explored in the Talmud and Zohar. In Kabbalah, every Shmita corresponds to individual emotional sephirot (the lower seven sephirot from Chessed to Malchut, named middot). 13th-century scholar Nahmanides asserted that the Torah could be read differently through different pronunciation and word divisions. Building on this idea, the author of Sefer HaTemunah asserted that the Torah is read in a different way during each Shmita. The author further stated that one Hebrew letter is missing altogether from the Torah, and will be revealed only when the world moves to the next sephira. According to Lawrence Kushner, author of The Book of Letters: A Mystical Alef-Bait, Sefer HaTemunah teaches that "every defect in our present universe is mysteriously connected with this unimaginable consonant", and that as soon as the missing letter is given to us, our Universe will be filled with undreamed of new words, the words that will turn repression into loving. Kushner states that the letter Shin (ש) is of special interest. The letter shin that appears on the small leather cube that holds the tefillin has four prongs rather than the standard three. Some scholars say that this is the missing letter. According to these scholars, the coming revelation of the name and pronunciation of this letter will be what repairs the universe.

Interpretation of Cosmic Shmitot in later Kabbalah

View of Luria From the Medieval flourishing of Kabbalah onwards, attempts were made to systemise its diverse teachings, especially commentaries on the elusive imagery of the Zohar. Sixteenth century Safed saw the realisation of this aim in the two normative, comprehensive versions of Kabbalistic theosophy: the quasi-rational linear scheme of Moshe Cordovero, followed by the supra-rational dynamic scheme of Isaac Luria that replaced it. Their view of the earlier doctrine from Sefer HaTemunah, of previous Cosmic Shmitah cycles before ours, was that previous cycles refer to spiritual processes, not actual creations; our universe being the first physical creation.

See also Mysticism Jewish views of astrology Kabbalistic astrology Sefer Raziel HaMalakh

References

External links The Age of the Universe: A Torah True Perspective by Aryeh Kaplan

Illustrations

Sefer HaTemunah: 18th-century manuscript of Sefer HaTemunah, copied by Abraham Abush of Lublin
18th-century manuscript of Sefer HaTemunah, copied by Abraham Abush of Lublin
Sefer HaTemunah: Four-pronged Shin embossed on a tefillin box
Four-pronged Shin embossed on a tefillin box

Worked examples

Example 1 — a first encounter with Sefer HaTemunah

Start with the simplest possible case. Write down what Sefer HaTemunah claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Sefer HaTemunah before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Sefer HaTemunah ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Sefer HaTemunah

In research
Sefer HaTemunah appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Sefer HaTemunah in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Sefer HaTemunah is common in secondary-school and first-year university syllabi. It links to neighbouring topics Astrological texts, Kabbalah texts, so understanding it makes those chapters shorter.
In everyday life
Look for Sefer HaTemunah outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Sefer HaTemunah in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Sefer HaTemunah means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Sefer HaTemunah out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Sefer HaTemunah in simple terms?

Sefer HaTemunah (Hebrew: ספר התמונה) (lit. "Book of the Figure", i.e. shape of the Hebrew letters) is a 13–14th century kabbalistic text. It is quoted in multiple sources on Halakha (Jewish religious law).

Why does Sefer HaTemunah matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Sefer HaTemunah?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Sefer HaTemunah.

Tags

  • Astrological texts
  • Kabbalah texts

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