At the end of the Yuga, assuming the form of the all consuming fire he burnt down the universe, with mountains, seas, islands, hills, woods and forest.
युगान्तकाले सम्प्राप्ते कालाग्निर्दहते जगत्। सपर्वतार्णवद्वीपं सशैलवनकाननम्॥