Surya Ketu Nadi
Cow as Kamdhenu is the fulfiller of all desires, “matrah sarva bhutanam, gavah sarv such prada”, Meaning, the cow being mother of all living entities gives all pleasures to everyone. Cow gives innumerable benefits to all people and it is the main reason cow is called mother.
Cows are receivers of auspicious rays from all heavenly constellations. Thus she contains influences of all constellations. Wherever there is a cow, there is influence of all heavenly constellations; blessings of all gods. Cow is the only divine living being that has a Surya Ketu Nadi (vein connected to Sun) passing through her backbone. Therefore the cow’s milk, butter and ghee have golden hue. This is because Surya Ketu Nadi, on interaction with solar rays produces gold salts in her blood. These salts are present in the cow’s milk and cow’s other bodily fluids which miraculously cures many diseases.
