In Jewish tradition, especially the Talmud, Vilon (Hebrew: ΧΦ΄ΧΧΧΦΉΧ) is the lowest of the seven firmaments or heavens.The name means βcurtainβ or βveilβ (related to Latin velum). In tractate Chagigah 12b, Reish Lakish lists the seven firmaments as Vilon, Rakia, SheαΈ₯akim, Zevul, Maβon, Makhon, and Aravot. Of Vilon the Talmud says it βdoes not contain anything, but enters in the morning and departs in the evening, and renews the act of Creation daily.β The proof text is Isaiah 40:22: βWho stretches out the heavens as a curtain (dok), and spreads them out as a tent to dwell in.βIn short, Vilon is pictured as a heavenly curtain that is drawn across at night and rolled back at dawn, marking the daily renewal of the world. Later mystical and midrashic sources sometimes expand on it (for example linking it with certain angels or with Adam and Eve), but the core Talmudic meaning is this lowest, curtain-like heaven.