That form which is fierce and terrible is considered as identical with Agni and Lightning and the Sun. That other form which is mild and auspicious is identical with Virtue and Water and the Moon.
उग्रा घोरा तनुर्यास्य सोऽग्निर्विद्युत् स भास्करः। शिवा सौम्या च या त्वस्य धर्मस्त्वापोऽथ चन्द्रमा:।।४