When the creature comes out of the womb, the form it presents is such that its nails and fingers seem to be of the colour of burnished copper. The next stage is called infancy, when the forin that was seen at the time of birth becomes metamorphosed.
जातमात्रं तु तद्रूपं दृष्ट्वा ताम्रनखाङ्गुलि। कौमारं रूपमापन्नं रूपतो नोपलभ्यते॥