RelBib: "Ein Sof," "The Annihilation of Thought," and "Being and Nothingness"; Zohar III, 26b; Isaac the Blind, "Beyond Knowing"; from Embellishments on the Zohar; Joseph Gikatilla, "The Name of Nothingness"; David ben Abraham ha-Lavan and Asher ben David, "Ayin"; Moses of Léon, "The Wisdom of Nothingness" and "Ripples"

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