This impressive nest of brackets carries an assertion — or a recommendation ? — buried by Roussel within a 644 alexandrine poem. In "A study on Raymond Roussel", Jean Ferry suggested the notion of a hidden message and transcribed the succession of brackets of Cantos II into the alphabet invented by the painter Samuel Morse : considering each bracket as a dot and the included text as a dash. But due to the missing spaces which separate letters the ensemble of dots and dashes as well as a concealed message remained an hypothesis… until it was deciphered by Jean-Max Albert (another painter), revealing (at least partially) the rousselienne formula, which can’t be fortuitous : « RELIVE YOUR DREAMS AWAKE » ( Revis tes rêves en éveil).