Robert Graves Poem

Robert Graves wrote a Poem titled Solomon's Seal which is actually about the 3D six pointed star which he calles "doubled pyramid":

Under each pyramid lies inverted
Its twin, the sister-bride to Pharaoh,
And so Solomon's seal bears witness.
Therefore we neither plead nor threaten
As lovers do who have lost faith-
Lovers not riven together by an oath
Sworn on the very brink of birth,
Nor by the penetrative ray of need
Piercing our doubled pyramid to its bed.
All time lies knotted here in Time's caress,
And so Solomon's seal bears witness.