The Key to Dante's Divine Comedy

The Key to Dante's Divine Comedy

The Heavens as the central motif, with the Triangle and the Pyramid in a secondary part. From The Secret Teachings.

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  1. Primary motif
  2. Secondary motifs · 1

The whole scheme of the poem in one diagram: the earth at the centre with the funnel of Hell bored into it and the terraced mountain of Purgatory rising from it, then the seven planetary spheres up the axis, the ring of fixed stars, and the rose in a golden triangle above them. By eye

The picture read whole, in the archive's words, from the sources quoted on the marks. Read on, and the picture follows: the motif under discussion keeps its colour.

Dante's Divine Comedy is a journey, and Knapp has drawn the map. The earth is a small globe at the bottom of the plate with the funnel of Hell bored down into it and the mountain of Purgatory rising from its far side; up the axis above it climb the spheres of the seven planets, each marked with its sign; then a band of stars, the eighth heaven; and above that a golden triangle with a red rose in it, and over everything a disc of light spinning like a galaxy. Hall's caption gives the route in one sentence: as the soul climbs the seven steps of Purgatory it is cleansed of the seven mortal sins, and it then ascends through the seven spheres of the Ptolemaic universe.

The spheres are the point of calling the plate a key. Dante's universe is Ptolemy's: the earth at the centre, the moon, Mercury, Venus, the sun, Mars, Jupiter and Saturn in their rings around it, the fixed stars beyond them, and beyond them the Primum Mobile that turns the whole machine. In the Paradiso the poet rises through each in turn and meets the blessed sorted by sphere. Knapp paints them as a ladder of coloured rings with the planetary signs on a cord up the middle, and the reader who has the plate can place any canto on it.

Above the stars the picture stops being astronomy. A golden triangle holds a red rose, and over it turns a disc of light with a vortex at its centre. Hall's caption does not reach this far, so the archive records the two forms as seen. Any reader of the poem knows the rose: the white rose of the blessed in the last cantos, whose petals are the saints, with Mary at its heart. Any reader of Hall's book knows the triangle. Whether Knapp meant the Trinity, or simply the Empyrean, the heaven of pure light that has no place and no motion, the plate does not say, and the archive does not say for it. Hall elsewhere quotes Albert Pike's claim that Dante's heaven is a series of cabalistic circles divided by a cross with a rose blooming at the centre, and a reader may weigh that.

The plate is unusual in this archive because its subject is a book rather than a doctrine, and the book is one everyone has heard of. That is its use. Hall put it in to say that the poem is built on the same scheme of spheres as the rest of the pictures in this collection, and that a reader who learns the ladder here can climb it in Fludd, in Kircher, in the tarot's Wheel and Star, and find the same rungs.

Decoded: every motif is marked, and each mark carries the reading its author gave it, quoted from the text, or says that it is observed on the picture and not read. The reading above is the archive's own, made from those sources and no others.

Record

Source
Rights
The plate is public domain in the United States, the 95-year term on the 1928 publication having expired on 1 January 2024, and in the European Union and United Kingdom, its painter J. Augustus Knapp having died in 1938. Manly P. Hall died in 1990, so his text is public domain in the United States on the same term and in copyright in the European Union and United Kingdom until 2061; what is printed here are short attributed quotations.
Restoration
Colour corrected, with the numbers here so the file can be made again. The camera's cast was measured on the page's own paper margin outside the plate, which is aged cream, and removed at a gain of 1.043, 1.012, 0.945 on red, green and blue. The photograph carried no true white, its brightest tone sitting at 236 of 255, so the white point was set to 246. The black point was set from the plate's own darkest tenth of a percent, 32 to 14, with nothing clipped at either end. A light unsharp mask, radius 1.4 at 58 per cent over a threshold of 3, counters the softness the lens and the JPEG put in. Nothing was painted, nothing was enlarged, and the saturation was not touched. A 880 by 1303 pixel web copy made from the source file; nothing painted, nothing upscaled.
Series
Artist
J. Augustus Knapp, American painter and illustrator, 1853 to 1938, who drew the colour plates of The Secret Teachings of All Ages (1928) for Manly P. Hall
Checked
the Internet Archive item, 6 September 2026. The plate is public domain in the United States, the 95-year term on the 1928 publication having expired on 1 January 2024, and in the European Union and United Kingdom, Knapp having died in 1938. Hall's text is quoted here in short attributed extracts: it is public domain in the United States on the same term, and in copyright in the European Union and United Kingdom until 1 January 2061, Hall having died on 29 August 1990. Captions were read by eye from the photographed page; chapter passages were taken from the full-book text and checked against it before writing. Not seen in the hand.
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Cite
Symbolica, “The Key to Dante's Divine Comedy”, J. Augustus Knapp, colour plate, 1928. thesymbolica.com/work/the-key-to-dantes-divine-comedy/