Seeing that Rākşasa invincible by reason of the boon he had received, the deities, apprehensive of being worsted by him, assumed the forms of beasts.
दृष्ट्वा देवास्तु तद्रक्षो वरदानेन दुर्जयम्। तिर्यग्योनि समाविष्टास्तस्य धर्षणभीरवः॥