Rāvana was transported with wrath in consequence of the breaking down of the palace. And, finding his destruction (at hand), he began to heave sighs.
रावणस्तु परं चक्रे क्रोधं प्रासादधर्षणात्। विनाशं चात्मनः पश्यन्निःश्वासपरमोऽभवत्॥