Kine are the Past and the Future. Kine are the root of eternal growth. Kine are the root of Prosperity. Anything given to kine is never lost.
गावो भूतं च भव्यं च गावः पुष्टिः सनातनी। गावोलक्ष्म्यास्तथा मूलं गोषु दत्तं न नश्यति॥